Below is the top 50 free applications in the Social Networking category(data is pulled from iTunes). We also have a list of the best paid social networking iPhone apps.

• Facebook – Facebook
• textPlus – GOGII
• Bump – Bump Technologies LLC
• Skype – Skype Software S.a.r.l
• MySpace Mobile – MySpace.com
• foursquare – foursquare
• Yahoo! Messenger – Yahoo!
• TextNow Lite – Free Texting (SMS) – Enflick, Inc.
• Live Messenger Free(MSN Messenger,Windows Live ID) – Global Agent Inc
• AIM (Free Edition) – AOL
• Twitterrific – The Iconfactory
• CauseWorld – shopkick
• EmojiIcons Free – Surpax Technology Inc.
• iCall Free VoIP – iCall, Inc.
• Echofon for Twitter – naan studio, Inc.
• Gowalla – Alamofire
• Loopt – Loopt, Inc.
• Chomp. – Chomp, Inc
• Free Foto Messenger  FFM – Jim Young
• GPS Tracking Lite – GTX Corp
• 9,999 Ringtones Uncensored FUNNY Speaking Ringtone Creator – No Tie Software
• eBuddy – eBuddy
• LinkedIn – LinkedIn
• TwitBird for Twitter – NibiruTech LTD.
• Text Me! – Free SMS & MMS like Messenger – GemSoftware
• 카카오톡 KakaoTalk – IWILAB Corp
• TweetDeck for iPhone – TweetDeck
• Meebo – Meebo, Inc.
• Love Quotes 500 – Michael Quach
• fring – fringland Ltd.
• Whrrl 3 – Pelago, Inc.
• Grindr-Gay, bi, & curious guy finder of the same sex. – Nearby Buddy Finder LLC
• Fake-A-Text! LITE – Imagination Research Labs
• WhosHere – MyRete
• Truphone for iPod – Truphone
• IM+ Lite – SHAPE Services
• theXchange 18+ chat – Jim Young
• match.com – Find Your Match at the World's Largest Dating Service – Match.com, L.L.C.
• Zoosk – Zoosk, Inc.
• SpeedDate – Dating for Singles of any Sex – SpeedDate.com
• Tumblr – Tumblr
• Chat-World – Christian Albert Mueller
• Fake Conversation – Dr. Strange App
• Hello! – Standard IM
• Nimbuzz – Nimbuzz
• Local Chat: What's Good? – Jim Young
• Palringo Instant Messenger – Palringo Limited
• Loopt Mix – Chat! – Loopt, Inc.
• 1337pwn XBOX Live Friends Application – 1337pwn.com
• OkCupid – OkCupid.com