Which is the best facebook app for blackberry?

There are too many links where you can download all apps for blackberry 8520.

http://www.umnet.com/phone/2618-Blackberry_8520_Curve_Gemini ,

http://www.mobilerated.com/rim-blackberry-8520-home.html ,

http://gallery.mobile9.com/c/blackberry-curve+8520-softwares_2364/1/ ,

http://www.brothersoft.com/mobile/download/blackberry-curve-8520-applications-free-download.html ,

http://www.getjar.com/mobile-software-for-tiphone-t67 ,

http://www.techno2day.com/applications/relish-your-blackberry-8520-with-blackberry-8520-applications-and-software-download/ ,

http://in.blackberry.com/services/appworld/?CPID=KNC-kw8856_p22&HBX_PK=rim|326ac598-28a0-d708-fab0-0000095f69b0 ,

http://www.freeware-downloads.com/freeware/app-world-blackberry-8520.htm ,

http://www.t-mobile.co.uk/shop/blackberry-phones/blackberry-app-world/ ,

Getjar is another perfect site where you can find all apps what you want , if you want twitter and Facebook apps that you can get their own website .download apps from your mobile so it is easy to download for you.