diff --git a/browser/main/HomePage.js b/browser/main/HomePage.js
index ffd3b790..4ed0f81b 100644
--- a/browser/main/HomePage.js
+++ b/browser/main/HomePage.js
@@ -1,6 +1,6 @@
 import React, { PropTypes} from 'react'
 import { connect } from 'react-redux'
-import { CREATE_MODE, IDLE_MODE, NEW } from 'boost/actions'
+import { CREATE_MODE, EDIT_MODE, IDLE_MODE, NEW } from 'boost/actions'
 // import UserNavigator from './HomePage/UserNavigator'
 import ArticleNavigator from './HomePage/ArticleNavigator'
 import ArticleTopBar from './HomePage/ArticleTopBar'
@@ -8,24 +8,102 @@ import ArticleList from './HomePage/ArticleList'
 import ArticleDetail from './HomePage/ArticleDetail'
 import _ from 'lodash'
 import keygen from 'boost/keygen'
+import { isModalOpen, closeModal } from 'boost/modal'
 
 const TEXT_FILTER = 'TEXT_FILTER'
 const FOLDER_FILTER = 'FOLDER_FILTER'
 const TAG_FILTER = 'TAG_FILTER'
 
 class HomePage extends React.Component {
+  componentDidMount () {
+    this.listener = (e) => this.handleKeyDown(e)
+    window.addEventListener('keydown', this.listener)
+  }
+
+  componentWillUnmount () {
+    window.removeEventListener('keydown', this.listener)
+  }
+
+  handleKeyDown (e) {
+    if (isModalOpen() && e.keyCode === 27) {
+      closeModal()
+      return
+    }
+
+    let { status } = this.props
+    let { nav, top, list, detail } = this.refs
+
+    if (top.isInputFocused() && !e.metaKey) {
+      if (e.keyCode === 13 || e.keyCode === 27) top.blurInput()
+      return
+    }
+
+    switch (status.mode) {
+      case CREATE_MODE:
+      case EDIT_MODE:
+        if (e.keyCode === 27) {
+          detail.handleCancelButtonClick()
+        }
+        if (e.keyCode === 13 && e.metaKey) {
+          detail.handleSaveButtonClick()
+        }
+        break
+      case IDLE_MODE:
+        if (e.keyCode === 69) {
+          detail.handleEditButtonClick()
+        }
+        if (e.keyCode === 68) {
+          detail.handleDeleteButtonClick()
+        }
+
+        // `detail`の`openDeleteConfirmMenu`の時。
+        if (detail.state.openDeleteConfirmMenu) {
+          if (e.keyCode === 27) {
+            detail.handleDeleteCancleButtonClick()
+          }
+          if (e.keyCode === 13 && e.metaKey) {
+            detail.handleDeleteConfirmButtonClick()
+          }
+          break
+        }
+
+        // `detail`の`openDeleteConfirmMenu`が`true`なら呼ばれない。
+        if (e.keyCode === 27) {
+          top.focusInput()
+        }
+
+        if (e.keyCode === 38) {
+          list.selectPriorArticle()
+        }
+
+        if (e.keyCode === 40) {
+          list.selectNextArticle()
+        }
+
+        if (e.keyCode === 13 && e.metaKey) {
+          nav.handleNewPostButtonClick()
+        }
+    }
+  }
+
   render () {
-    let { dispatch, status, articles, activeArticle, folders } = this.props
+    let { dispatch, status, articles, activeArticle, folders, filters } = this.props
 
     return (
       <div className='HomePage'>
         <ArticleNavigator
+          ref='nav'
           dispatch={dispatch}
           folders={folders}
           status={status}
         />
-        <ArticleTopBar dispatch={dispatch} status={status}/>
+        <ArticleTopBar
+          ref='top'
+          dispatch={dispatch}
+          status={status}
+        />
         <ArticleList
+          ref='list'
           dispatch={dispatch}
           folders={folders}
           articles={articles}
@@ -33,10 +111,12 @@ class HomePage extends React.Component {
           activeArticle={activeArticle}
         />
         <ArticleDetail
+          ref='detail'
           dispatch={dispatch}
           activeArticle={activeArticle}
           folders={folders}
           status={status}
+          filters={filters}
         />
       </div>
     )
@@ -139,7 +219,12 @@ function remap (state) {
     folders,
     status,
     articles,
-    activeArticle
+    activeArticle,
+    filters: {
+      folder: folderFilters,
+      tag: tagFilters,
+      text: textFilters
+    }
   }
 }
 
@@ -153,7 +238,12 @@ HomePage.propTypes = {
   articles: PropTypes.array,
   activeArticle: PropTypes.shape(),
   dispatch: PropTypes.func,
-  folders: PropTypes.array
+  folders: PropTypes.array,
+  filters: PropTypes.shape({
+    folder: PropTypes.array,
+    tag: PropTypes.array,
+    text: PropTypes.array
+  })
 }
 
 export default connect(remap)(HomePage)
diff --git a/browser/main/HomePage/ArticleDetail.js b/browser/main/HomePage/ArticleDetail.js
index 9a33af2a..a8b1c72c 100644
--- a/browser/main/HomePage/ArticleDetail.js
+++ b/browser/main/HomePage/ArticleDetail.js
@@ -4,7 +4,7 @@ import _ from 'lodash'
 import ModeIcon from 'boost/components/ModeIcon'
 import MarkdownPreview from 'boost/components/MarkdownPreview'
 import CodeEditor from 'boost/components/CodeEditor'
-import { IDLE_MODE, CREATE_MODE, EDIT_MODE, switchMode, updateArticle, destroyArticle } from 'boost/actions'
+import { IDLE_MODE, CREATE_MODE, EDIT_MODE, switchMode, switchArticle, switchFolder, updateArticle, destroyArticle } from 'boost/actions'
 import aceModes from 'boost/ace-modes'
 import Select from 'react-select'
 import linkState from 'boost/linkState'
@@ -38,6 +38,11 @@ export default class ArticleDetail extends React.Component {
         console.log('receive props')
       })
     }
+
+    let isEdit = nextProps.status.mode === EDIT_MODE || nextProps.status.mode === CREATE_MODE
+    if (isEdit && this.state.openDeleteConfirmMenu) {
+      this.setState({openDeleteConfirmMenu: false})
+    }
   }
 
   renderEmpty () {
@@ -135,7 +140,7 @@ export default class ArticleDetail extends React.Component {
   }
 
   handleSaveButtonClick (e) {
-    let { dispatch, folders } = this.props
+    let { dispatch, folders, filters } = this.props
     let article = this.state.article
     let newArticle = Object.assign({}, article)
 
@@ -147,6 +152,8 @@ export default class ArticleDetail extends React.Component {
 
     dispatch(updateArticle(newArticle))
     dispatch(switchMode(IDLE_MODE))
+    if (filters.folder.length !== 0) dispatch(switchFolder(folder.name))
+    dispatch(switchArticle(newArticle.key))
   }
 
   handleFolderKeyChange (e) {
diff --git a/browser/main/HomePage/ArticleList.js b/browser/main/HomePage/ArticleList.js
index 67442513..3fc307b8 100644
--- a/browser/main/HomePage/ArticleList.js
+++ b/browser/main/HomePage/ArticleList.js
@@ -15,6 +15,26 @@ export default class ArticleList extends React.Component {
     clearInterval(this.refreshTimer)
   }
 
+  selectPriorArticle () {
+    let { articles, activeArticle, dispatch } = this.props
+    let targetIndex = articles.indexOf(activeArticle) - 1
+    let targetArticle = articles[targetIndex]
+
+    if (targetArticle != null) {
+      dispatch(switchArticle(targetArticle.key))
+    }
+  }
+
+  selectNextArticle () {
+    let { articles, activeArticle, dispatch } = this.props
+    let targetIndex = articles.indexOf(activeArticle) + 1
+    let targetArticle = articles[targetIndex]
+
+    if (targetArticle != null) {
+      dispatch(switchArticle(targetArticle.key))
+    }
+  }
+
   handleArticleClick (article) {
     let { dispatch } = this.props
     return function (e) {
diff --git a/browser/main/HomePage/ArticleNavigator.js b/browser/main/HomePage/ArticleNavigator.js
index 5db3b832..1d6ea82c 100644
--- a/browser/main/HomePage/ArticleNavigator.js
+++ b/browser/main/HomePage/ArticleNavigator.js
@@ -7,6 +7,7 @@ import Preferences from 'boost/components/modal/Preferences'
 import CreateNewFolder from 'boost/components/modal/CreateNewFolder'
 
 import remote from 'remote'
+let userName = remote.getGlobal('process').env.USER
 
 export default class ArticleNavigator extends React.Component {
   handlePreferencesButtonClick (e) {
@@ -51,8 +52,6 @@ export default class ArticleNavigator extends React.Component {
       )
     })
 
-    let userName = remote.getGlobal('process').env.USER
-
     return (
       <div className='ArticleNavigator'>
         <div className='userInfo'>
diff --git a/browser/main/HomePage/ArticleTopBar.js b/browser/main/HomePage/ArticleTopBar.js
index 317d7e4a..c78ecf37 100644
--- a/browser/main/HomePage/ArticleTopBar.js
+++ b/browser/main/HomePage/ArticleTopBar.js
@@ -4,16 +4,29 @@ import ExternalLink from 'boost/components/ExternalLink'
 import { setSearchFilter } from 'boost/actions'
 
 export default class ArticleTopBar extends React.Component {
+  isInputFocused () {
+    return document.activeElement === ReactDOM.findDOMNode(this.refs.searchInput)
+  }
+
+  focusInput () {
+    ReactDOM.findDOMNode(this.refs.searchInput).focus()
+  }
+
+  blurInput () {
+    ReactDOM.findDOMNode(this.refs.searchInput).blur()
+  }
+
   handleSearchChange (e) {
     let { dispatch } = this.props
 
     dispatch(setSearchFilter(e.target.value))
   }
+
   handleSearchClearButton (e) {
     let { dispatch } = this.props
 
     dispatch(setSearchFilter(''))
-    ReactDOM.findDOMNode(this.refs.searchInput).focus()
+    this.focusInput()
   }
 
   render () {
diff --git a/browser/main/index.js b/browser/main/index.js
index 32a4f106..33e468fb 100644
--- a/browser/main/index.js
+++ b/browser/main/index.js
@@ -7,6 +7,8 @@ import HomePage from './HomePage'
 // import auth from 'boost/auth'
 import store from 'boost/store'
 import ReactDOM from 'react-dom'
+import { isModalOpen, closeModal } from 'boost/modal'
+import { IDLE_MODE, CREATE_MODE, EDIT_MODE } from 'boost/actions'
 require('../styles/main/index.styl')
 
 let routes = (
@@ -25,21 +27,4 @@ ReactDOM.render((
 ), el, function () {
   let loadingCover = document.getElementById('loadingCover')
   loadingCover.parentNode.removeChild(loadingCover)
-
-  // Refresh user information
-  // if (auth.user() != null) {
-  //   fetchCurrentUser()
-  //     .then(function (res) {
-  //       let user = res.body
-  //       store.dispatch(updateUser(user))
-  //     })
-  //     .catch(function (err) {
-  //       if (err.status === 401) {
-  //         auth.clear()
-  //         if (window != null) window.location.reload()
-  //       }
-  //       console.error(err.message)
-  //       console.log('Fetch failed')
-  //     })
-  // }
 })
diff --git a/lib/actions.js b/lib/actions.js
index ac0a2059..ba0f668e 100644
--- a/lib/actions.js
+++ b/lib/actions.js
@@ -10,6 +10,7 @@ export const SWITCH_MODE = 'SWITCH_MODE'
 export const SWITCH_ARTICLE = 'SWITCH_ARTICLE'
 export const SET_SEARCH_FILTER = 'SET_SEARCH_FILTER'
 export const SET_TAG_FILTER = 'SET_TAG_FILTER'
+export const CLEAR_SEARCH = 'CLEAR_SEARCH'
 
 // Status - mode
 export const IDLE_MODE = 'IDLE_MODE'
@@ -18,8 +19,6 @@ export const EDIT_MODE = 'EDIT_MODE'
 
 // Article status
 export const NEW = 'NEW'
-export const SYNCING = 'SYNCING'
-export const UNSYNCED = 'UNSYNCED'
 
 // DB
 export function updateArticle (article) {
@@ -91,3 +90,9 @@ export function setTagFilter (tag) {
     data: tag
   }
 }
+
+export function clearSearch () {
+  return {
+    type: CLEAR_SEARCH
+  }
+}
diff --git a/lib/components/TagSelect.js b/lib/components/TagSelect.js
index 91a2ed63..b7fbead8 100644
--- a/lib/components/TagSelect.js
+++ b/lib/components/TagSelect.js
@@ -17,7 +17,12 @@ export default class TagSelect extends React.Component {
     e.preventDefault()
 
     let tags = this.props.tags.slice(0)
-    let newTag = this.state.input
+    let newTag = this.state.input.trim()
+
+    if (newTag.length === 0) {
+      this.setState({input: ''})
+      return
+    }
 
     tags.push(newTag)
     tags = _.uniq(tags)
diff --git a/lib/modal.js b/lib/modal.js
index ae720490..a445ec33 100644
--- a/lib/modal.js
+++ b/lib/modal.js
@@ -40,3 +40,7 @@ export function closeModal () {
   if (modalBase == null) { return }
   modalBase.setState({component: null, componentProps: null, isHidden: true})
 }
+
+export function isModalOpen () {
+  return !modalBase.state.isHidden
+}
diff --git a/lib/reducer.js b/lib/reducer.js
index a51d48a8..e74f1370 100644
--- a/lib/reducer.js
+++ b/lib/reducer.js
@@ -1,6 +1,6 @@
 import { combineReducers } from 'redux'
 import _ from 'lodash'
-import { SWITCH_FOLDER, SWITCH_MODE, SWITCH_ARTICLE, SET_SEARCH_FILTER, SET_TAG_FILTER, ARTICLE_UPDATE, ARTICLE_DESTROY, FOLDER_CREATE, FOLDER_UPDATE, FOLDER_DESTROY, IDLE_MODE, CREATE_MODE } from './actions'
+import { SWITCH_FOLDER, SWITCH_MODE, SWITCH_ARTICLE, SET_SEARCH_FILTER, SET_TAG_FILTER, CLEAR_SEARCH, ARTICLE_UPDATE, ARTICLE_DESTROY, FOLDER_CREATE, FOLDER_UPDATE, FOLDER_DESTROY, IDLE_MODE, CREATE_MODE } from './actions'
 import dataStore from 'boost/dataStore'
 import keygen from 'boost/keygen'
 
@@ -134,6 +134,11 @@ function status (state = initialStatus, action) {
       state.search = `#${action.data}`
       state.mode = IDLE_MODE
 
+      return state
+    case CLEAR_SEARCH:
+      state.search = ''
+      state.mode = IDLE_MODE
+
       return state
     default:
       return state