Here are some of the links to add sources to Cydia for different cracked apps.
BigBoss : http://apt.bigboss.us.com/repofiles/cydia/
ModMyiFone: http://modmyi.com/repo
Ste: http://repo.smxy.org/cydia/apt/
Telesphoreo Tangelo: http://apt.saurik.com/
ZodTTD: http://www.zodttd.com/repo/cydia/
Andy Dam: http://repo.gafoogle.com/
Intelliborn: http://intelliborn.com/cydia/
iSpazio: http://ispaziorepo.com/cydia/apt/
iFonetec: http://app.ifonetec.com/cydia/
Hack&Dev.org: http://iphone.hackndev.org/apt/
iPhoneall.org: http://mc2.iphoneall.org/
Darvens Repository: http://apt.guardiansofchaos.com/
iPhone.org.hk: http://www.iphone.org.hk/apt/
Hackulo: http://cydia.hackulo.us/
iModZone Cydia Repo(R): http://c.imodzone.net/
Niklas Schroder: http://apt.paperclipsandscrambledeggs.com/
iClarified: http://cydia.iclarified.com
iAccess: http://iaccess.com/apt
WeHo: http://weho.ru/iphone/
Steffwiz’s Source: http://apt.steffwiz.com/
Zanekills’ Source: http://apt.zanekills.com/
SaladSoft: http://nickplee.com/cydiasource/
Urbanfanatics.com: http://urbanfanatics.com/cydia/
Hackers.nl: http://apt.hackers.nl/
Code Genocide: http://repo.codegenocide.com/cydia
iPhone Video Recorder (3G also): http://www.iphonevideorecorder.com
Weiphone Source: http://app.weiphone.com/cydia/
xSellize (Free Repo): http://xsellize.com/cydia/
These are the Language Sources to add more languages.
[German] iPhone-Notes.de: http://apt.iphone-storage.de/
[Estonian] Comcute: http://gecko.pri.ee/cydia/
[Czech Republic] CZ&SK: http://csid.tym.cs/repo/
[Bulgarian] iPhone-patch: http://mspasov.com/
[Chinese] iPhone.freecoder.org: http://iphone.freecoder.org/apt/
[Hebrew] iPhonehe.com: http://iphonehe.com/iphone
[Polish] Marcin Laber: http://cydia.i-apps.pl/
[Catalan] iPhoneCat Team: http://apple.bloks.cat/repo/
[Dutch] iFoneguide: http://cydia.ifoneguide.nl/
[Norway] iFon Norway: http://c.ifon1.no/
[French] SOSiPhone: http://cy.sosiphone.com/
Here is a vedio demonstration about adding a source to cydia. Please click this link. http://www.youtube.com/watch?v=Wb8Ja9EblI8
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