PageData launched today, a new resource that measures the Top Pages and Top Gainers on Facebook Pages.

Here’s more: “PageData is an independent Facebook Page tracking service of Inside Network , a division of WebMediaBrands, Inc. Inside Network is the leading source for business information and market research on the Facebook platform and social gaming ecosystem. PageData is a tool for marketers, advertisers, developers, investors, and analysts interested in tracking engagement metrics for Facebook Pages.”

Top Gaining Facebook Pages This Week (by Total Likes Added)

1.  Facebook for Every Phone +2,863,327
2.  Snaptu +1,407,182
3.  Warcraft +1,363,399
4.  Listening to music +1,129,582
5.  Fraises Tagada – Haribo +804,455
6.  Adele +494,388
7.  Titanic +452,149
8.  Jeremy Lin +438,508
9.  Bojan Krkic +419,967
10.  Harry Potter +386,062