The 50 Most Active Facebook Connect Sites

Facebook Connect means that any site can allow users to sign in with their Facebook username, thus sharing info about the site with their Facebook friends. Below are the current top 50 sites making the most of this technology, with Family Tree topping the chart and Techcrunch at number 17.

The chart is decided by how many active users each site has and is compiled by AllFacebook.com:

1.		Family Tree	http://www.familybuilder….
2.		Facebook Exporter for iPhoto	http://www.apple.com/ilif…
3.		JibJab	http://sendables.jibjab.com
4.		Geni	http://www.geni.com
5.		Dada Music Player	http://www.dada.net
6.		Vimeo	http://www.vimeo.com
7.		Gizmodo	http://www.gizmodo.com
8.		CNET	http://www.cnet.com
9.		SideReel	http://www.sidereel.com
10.		Eventbrite	http://www.eventbrite.com
11.		Lifehacker	http://www.lifehacker.com
12.		Connected Weddings	http://www.connectedweddi…
13.		Citysearch	http://beta.citysearch.com
14.		Widgetbox	http://www.widgetbox.com
15.		Kotaku	http://www.kotaku.com
16.		Joost.com	http://www.joost.com
17.		TechCrunch	http://www.techcrunch.com
18.		Map My Run	http://www.mapmyrun.com
19.		GlobalGrind: Connect	http://www.globalgrind.com
20.		io9	http://www.io9.com
21.		Gawker	http://www.gawker.com
22.		Brightkite	http://www.brightkite.com
23.		MapMyRide	http://www.mapmyride.com
24.		Jalopnik	http://www.jalopnik.com
25.		Mobnotes	http://www.mobnotes.com
26.		Howcast	http://www.howcast.com
27.		Jezebel	http://www.jezebel.com
28.		MyBO	http://my.barackobama.com
29.		Deadspin	http://www.deadspin.com
30.		The Insider	http://www.theinsider.com
31.		MapMyFitness	http://www.mapmyfitness.com
32.		BrainFall.com Quiz Results	http://www.brainfall.com
33.		944 Events	http://www.944.com
34.		Campography	http://www.campography.com
35.		IndieGoGo	http://www.indiegogo.com
36.		InsideFB	http://www.insidefacebook…
37.		MileSplit US	http://www.milesplit.us
38.		MapMyWalk	http://www.mapmywalk.com
39.		amazingtunes	http://www.amazingtunes.com
40.		MapMyTri	http://www.mapmytri.com
41.		BOLDstreet Wi-Fi Hotspots	http://secure.boldstreet….
42.		Drop.io Feed Connect	http://drop.io
43.		iList	http://www.ilist.com
44.		Govit	http://www.govit.com
45.		BeterZ.com	http://beterz.com
46.		pokeriphone	http://itunes.apple.com/W…
47.		Karaoke	http://www.karaokeplay.com/
48.		vLane	http://vlane.com/
49.		Socialfly	http://social-fly.com
50.		iModules Client Community	http://clients.imodules.com