SafariOmnibar search keywords

SearchProviders.plist

<key>SafariOmnibar_SearchProviders</key>
<array>
	<dict>
		<key>Name</key>
		<string>Google</string>
		<key>Keyword</key>
		<string>g</string>
		<key>Default</key>
		<true/>
		<key>SearchURLTemplate</key>
		<string>http://www.google.com/search?client=safari&amp;rls=en&amp;q={searchTerms}&amp;ie=UTF-8&amp;oe=UTF-8</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Google Image</string>
		<key>Keyword</key>
		<string>gi</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://images.google.com/images?hl=en&amp;source=hp&amp;q={searchTerms}&amp;btnG=Search+Images&amp;gbv=2&amp;aq=f&amp;oq=&amp;aqi=</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Wikipedia</string>
		<key>Keyword</key>
		<string>w</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://en.wikipedia.org/w/index.php?title=Special:Search&amp;search={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Urban Dictionary</string>
		<key>Keyword</key>
		<string>ud</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.urbandictionary.com/define.php?term={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Walkscore</string>
		<key>Keyword</key>
		<string>ws</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.walkscore.com/get-score.php?street={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Wolfram Alpha</string>
		<key>Keyword</key>
		<string>wa</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.wolframalpha.com/input/?i={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Twitter</string>
		<key>Keyword</key>
		<string>tw</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://search.twitter.com/search?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>The TVDB</string>
		<key>Keyword</key>
		<string>tv</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.thetvdb.com/index.php?seriesname={searchTerms}&amp;fieldlocation=2&amp;language=7&amp;genre=&amp;year=&amp;network=&amp;zap2it_id=&amp;tvcom_id=&amp;imdb_id=&amp;order=translation&amp;searching=Search&amp;tab=advancedsearch</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>OpenSubtitles</string>
		<key>Keyword</key>
		<string>sub</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.opensubtitles.org/en/search2/sublanguageid-eng/subsumcd-1/moviename-{searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>StackOverflow</string>
		<key>Keyword</key>
		<string>so</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://stackoverflow.com/search?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Rotten Tomatoes</string>
		<key>Keyword</key>
		<string>rt</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.rottentomatoes.com/search/full_search.php?search={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Github</string>
		<key>Keyword</key>
		<string>r</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://github.com/{searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Github Org</string>
		<key>Keyword</key>
		<string>o</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>https://github.com/organizations/{searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>NZBMatrix</string>
		<key>Keyword</key>
		<string>nzbm</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://nzbmatrix.com/nzb-search.php?cat=0&amp;search={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Newzbin</string>
		<key>Keyword</key>
		<string>nzb</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.newzbin.com/search/query/?q={searchTerms}&amp;area=-1&amp;fpn=p&amp;searchaction=Go&amp;areadone=-1</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Newegg</string>
		<key>Keyword</key>
		<string>ne</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&amp;DEPA=0&amp;Order=BESTMATCH&amp;Description={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>MetaCritic</string>
		<key>Keyword</key>
		<string>mc</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.metacritic.com/search/all/{searchTerms}/results</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Let Me Google That</string>
		<key>Keyword</key>
		<string>lgt</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://letmegooglethatforyou.com?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Isohunt</string>
		<key>Keyword</key>
		<string>iso</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://isohunt.com/torrents.php?ihq={searchTerms}&amp;ext=&amp;op=and</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>IMDB</string>
		<key>Keyword</key>
		<string>i</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://us.imdb.com/find?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Mac OS X Hints</string>
		<key>Keyword</key>
		<string>hint</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.macosxhints.com/search.php?query={searchTerms}&amp;type=stories&amp;mode=search&amp;keyType=all</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Google News</string>
		<key>Keyword</key>
		<string>gn</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://news.google.com/news?client=safari&amp;rls=en-us&amp;oe=UTF-8&amp;um=1&amp;tab=wn&amp;nolr=1&amp;hl=en&amp;q={searchTerms}&amp;btnG=Search+News</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Google Maps</string>
		<key>Keyword</key>
		<string>gm</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://maps.google.com/maps?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Github Code</string>
		<key>Keyword</key>
		<string>gh</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>https://github.com/search?type=Everything&amp;repo=&amp;langOverride=&amp;start_value=1&amp;q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Gamefaqs</string>
		<key>Keyword</key>
		<string>faq</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.gamefaqs.com/search/index.html?platform=0&amp;s=s&amp;game={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Fandango</string>
		<key>Keyword</key>
		<string>f</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.fandango.com/GlobalSearch.aspx?q={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>eBay</string>
		<key>Keyword</key>
		<string>e</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://search.ebay.com/search/search.dll?satitle={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Demonoid</string>
		<key>Keyword</key>
		<string>d</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.demonoid.me/files/?category=0&amp;subcategory=All&amp;quality=All&amp;seeded=0&amp;external=2&amp;query={searchTerms}&amp;uid=0&amp;sort=</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Craigslist SF</string>
		<key>Keyword</key>
		<string>cl</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://sfbay.craigslist.org/search/sss?query={searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>Amazon</string>
		<key>Keyword</key>
		<string>a</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.amazon.com/exec/obidos/search-handle-url/index%3Dblended%26field-keywords%3D{searchTerms}</string>
	</dict>
	<dict>
		<key>Name</key>
		<string>YouTube</string>
		<key>Keyword</key>
		<string>yt</string>
		<key>Default</key>
		<false/>
		<key>SearchURLTemplate</key>
		<string>http://www.youtube.com/results?search_query={searchTerms}&amp;search=Search</string>
	</dict>
</array>

As of SafariOmnibar 1.3, these are stored in ~/Library/Preferences/com.apple.Safari, so you'll have to edit it and merge this key/value pair into the stuff that's already there.