The wmfilter module for Drupal allows the use of syntax such as [google:omarzblog] to create links like: [google:omarzblog].
Or [dictionary:syntax] to look up the definition of [Dictionary:syntax]
Moreover, there are tons of other wiki based sites that have already been mapped out there (Interwiki Map). For the hell of it, I decide to try out all of them by using a simple text editor to create these 166 (mostly useless) links to search for "omarzblog"...
... on AbbeNormal >> [AbbeNormal:omarzblog]
... on AcadWiki >> [AcadWiki:omarzblog]
... on Acronym >> [Acronym:omarzblog]
... on Advogato >> [Advogato:omarzblog]
... on AIWiki >> [AIWiki:omarzblog]
... on ALife >> [ALife:omarzblog]
... on Annotation >> [Annotation:omarzblog]
... on AnnotationWiki >> [AnnotationWiki:omarzblog]
... on arXiv >> [arXiv:omarzblog]
... on AspieNetWiki >> [AspieNetWiki:omarzblog]
... on BEMI >> [BEMI:omarzblog]
... on BenefitsWiki >> [BenefitsWiki:omarzblog]
... on BrasilWiki >> [BrasilWiki:omarzblog]
... on BridgesWiki >> [BridgesWiki:omarzblog]
... on bugzilla >> [bugzilla:omarzblog]
... on C2find >> [C2find:omarzblog]
... on Cache >> [Cache:omarzblog]
... on Ciscavate >> [Ciscavate:omarzblog]
... on CLiki >> [CLiki:omarzblog]
... on CmWiki >> [CmWiki:omarzblog]
... on CodersBase >> [CodersBase:omarzblog]
... on Commons >> [Commons:omarzblog]
... on CorpKnowPedia >> [CorpKnowPedia:omarzblog]
... on CreationMatters >> [CreationMatters:omarzblog]
... on DejaNews >> [DejaNews:omarzblog]
... on Demokraatia >> [Demokraatia:omarzblog]
... on Dictionary >> [Dictionary:omarzblog]
... on Disinfopedia >> [Disinfopedia:omarzblog]
... on DiveIntoOsx >> [DiveIntoOsx:omarzblog]
... on DocBook >> [DocBook:omarzblog]
... on DolphinWiki >> [DolphinWiki:omarzblog]
... on DrumCorpsWiki >> [DrumCorpsWiki:omarzblog]
... on Ec^eI >> [Ec^eI:omarzblog]
... on EcheI >> [EcheI:omarzblog]
... on EcxeI >> [EcxeI:omarzblog]
... on EfnetCeeWiki >> [EfnetCeeWiki:omarzblog]
... on EfnetCppWiki >> [EfnetCppWiki:omarzblog]
... on EfnetPythonWiki >> [EfnetPythonWiki:omarzblog]
... on EfnetXmlWiki >> [EfnetXmlWiki:omarzblog]
... on EljWiki >> [EljWiki:omarzblog]
... on EmacsWiki >> [EmacsWiki:omarzblog]
... on EnciclopediaLibre >> [EnciclopediaLibre:omarzblog]
... on EoKulturCentro >> [EoKulturCentro:omarzblog]
... on EvoWiki >> [EvoWiki:omarzblog]
... on FinalEmpire >> [FinalEmpire:omarzblog]
... on FIRSTwiki >> [FIRSTwiki:omarzblog]
... on Foldoc >> [Foldoc:omarzblog]
... on FoxWiki >> [FoxWiki:omarzblog]
... on fr.be >> [fr.be:omarzblog]
... on fr.ca >> [fr.ca:omarzblog]
... on fr.fr >> [fr.fr:omarzblog]
... on fr.org >> [fr.org:omarzblog]
... on FreeBSDman >> [FreeBSDman:omarzblog]
... on GameWiki >> [GameWiki:omarzblog]
... on GEJ >> [GEJ:omarzblog]
... on Gentoo-Wiki >> [Gentoo-Wiki:omarzblog]
... on GlobalVoices >> [GlobalVoices:omarzblog]
... on GmailWiki >> [GmailWiki:omarzblog]
... on Google >> [Google:omarzblog]
... on GoogleGroups >> [GoogleGroups:omarzblog]
... on GotAMac >> [GotAMac:omarzblog]
... on GreenCheese >> [GreenCheese:omarzblog]
... on HammondWiki >> [HammondWiki:omarzblog]
... on Haribeau >> [Haribeau:omarzblog]
... on HeWikisource >> [HeWikisource:omarzblog]
... on HerzKinderWiki >> [HerzKinderWiki:omarzblog]
... on HRWiki >> [HRWiki:omarzblog]
... on IAWiki >> [IAWiki:omarzblog]
... on IMDB >> [IMDB:omarzblog]
... on Infosecpedia >> [Infosecpedia:omarzblog]
... on JargonFile >> [JargonFile:omarzblog]
... on JEFO >> [JEFO:omarzblog]
... on JiniWiki >> [JiniWiki:omarzblog]
... on JspWiki >> [JspWiki:omarzblog]
... on KerimWiki >> [KerimWiki:omarzblog]
... on KmWiki >> [KmWiki:omarzblog]
... on KnowHow >> [KnowHow:omarzblog]
... on LanifexWiki >> [LanifexWiki:omarzblog]
... on LinuxWiki >> [LinuxWiki:omarzblog]
... on Lojban >> [Lojban:omarzblog]
... on LQWiki >> [LQWiki:omarzblog]
... on LugKR >> [LugKR:omarzblog]
... on LutherWiki >> [LutherWiki:omarzblog]
... on Mail >> [Mail:omarzblog]
... on MathSongsWiki >> [MathSongsWiki:omarzblog]
... on MbTest >> [MbTest:omarzblog]
... on MeatBall >> [MeatBall:omarzblog]
... on MediaZilla >> [MediaZilla:omarzblog]
... on MemoryAlpha >> [MemoryAlpha:omarzblog]
... on Metaweb >> [Metaweb:omarzblog]
... on MetaWiki >> [MetaWiki:omarzblog]
... on MetaWikiPedia >> [MetaWikiPedia:omarzblog]
... on MoinMoin >> [MoinMoin:omarzblog]
... on MozillaWiki >> [MozillaWiki:omarzblog]
... on MuWeb >> [MuWeb:omarzblog]
... on NetVillage >> [NetVillage:omarzblog]
... on OEIS >> [OEIS:omarzblog]
... on OpenFacts >> [OpenFacts:omarzblog]
... on OpenWiki >> [OpenWiki:omarzblog]
... on Opera7Wiki >> [Opera7Wiki:omarzblog]
... on OrgPatterns >> [OrgPatterns:omarzblog]
... on PangalacticOrg >> [PangalacticOrg:omarzblog]
... on PersonalTelco >> [PersonalTelco:omarzblog]
... on PhpWiki >> [PhpWiki:omarzblog]
... on Pikie >> [Pikie:omarzblog]
... on PMEG >> [PMEG:omarzblog]
... on PPR >> [PPR:omarzblog]
... on PurlNet >> [PurlNet:omarzblog]
... on PythonInfo >> [PythonInfo:omarzblog]
... on PythonWiki >> [PythonWiki:omarzblog]
... on PyWiki >> [PyWiki:omarzblog]
... on Raec >> [Raec:omarzblog]
... on ReVo >> [ReVo:omarzblog]
... on RFC >> [RFC:omarzblog]
... on SeaPig >> [SeaPig:omarzblog]
... on SeattleWireless >> [SeattleWireless:omarzblog]
... on SenseisLibrary >> [SenseisLibrary:omarzblog]
... on Shakti >> [Shakti:omarzblog]
... on Slashdot >> [Slashdot:omarzblog]
... on SMikipedia >> [SMikipedia:omarzblog]
... on SockWiki >> [SockWiki:omarzblog]
... on SourceForge >> [SourceForge:omarzblog]
... on Squeak >> [Squeak:omarzblog]
... on StrikiWiki >> [StrikiWiki:omarzblog]
... on Susning >> [Susning:omarzblog]
... on SVGWiki >> [SVGWiki:omarzblog]
... on Tavi >> [Tavi:omarzblog]
... on TEJO >> [TEJO:omarzblog]
... on test >> [test:omarzblog]
... on TMBW >> [TMBW:omarzblog]
... on TmNet >> [TmNet:omarzblog]
... on TMwiki >> [TMwiki:omarzblog]
... on Turismo >> [Turismo:omarzblog]
... on Theopedia >> [Theopedia:omarzblog]
... on TWiki >> [TWiki:omarzblog]
... on TwistedWiki >> [TwistedWiki:omarzblog]
... on UEA >> [UEA:omarzblog]
... on Unreal >> [Unreal:omarzblog]
... on Ursine >> [Ursine:omarzblog]
... on USEJ >> [USEJ:omarzblog]
... on UseMod >> [UseMod:omarzblog]
... on VisualWorks >> [VisualWorks:omarzblog]
... on WarpedView >> [WarpedView:omarzblog]
... on WebDevWikiNL >> [WebDevWikiNL:omarzblog]
... on Webisodes >> [Webisodes:omarzblog]
... on WebSeitzWiki >> [WebSeitzWiki:omarzblog]
... on Why >> [Why:omarzblog]
... on Wiki >> [Wiki:omarzblog]
... on Wikia >> [Wikia:omarzblog]
... on Wikibooks >> [Wikibooks:omarzblog]
... on Wikicities >> [Wikicities:omarzblog]
... on Wikinfo >> [Wikinfo:omarzblog]
... on Wikimedia >> [Wikimedia:omarzblog]
... on Wikipedia >> [Wikipedia:omarzblog]
... on Wikiquote >> [Wikiquote:omarzblog]
... on Wikinews >> [Wikinews:omarzblog]
... on Wikisource >> [Wikisource:omarzblog]
... on Wikispecies >> [Wikispecies:omarzblog]
... on WikiTravel >> [WikiTravel:omarzblog]
... on WikiWorld >> [WikiWorld:omarzblog]
... on Wiktionary >> [Wiktionary:omarzblog]
... on WLUG >> [WLUG:omarzblog]
... on WLWiki >> [WLWiki:omarzblog]
... on YpsiEyeball >> [YpsiEyeball:omarzblog]
... on ZWiki >> [ZWiki:omarzblog]
... on ZZZ Wiki >> [ZZZ Wiki:omarzblog]