Yahoo, Scribd, Draw Something, Instagram, Pandora, more on this week’s top 20 growing Facebook apps by MAU

Yahoo’s news reader application topped our list of apps growing by monthly active users this week. The Washington Post’s Social Reader, as well as games, a few video apps, professional networking apps and others made up the list. Interestingly, the addition of Instagram for Android devices also pushed this app to make our list.

Titles on our list gained the most MAU of any apps on the platform, growing from between 300,000 and 3 million MAU, based on AppData, our data tracking service covering traffic growth for apps on Facebook.

Top Gainers This Week

1.   Yahoo! Reader29,100,000+3,000,000+ 11%
2.   Scribd21,100,000+2,800,000+ 15%
3.   Social Reader14,000,000+2,100,000+ 18%
4.   Draw Something by OMGPOP33,200,000+1,400,000+ 4%
5.   Zynga Slingo14,000,000+1,400,000+ 11%
6.   Rotten Tomatoes15,600,000+1,300,000+ 9%
7.   Pandora11,700,000+900,000+ 8%
8.   Instagram7,300,000+800,000+ 12%
9.   Flixster1,600,000+670,000+ 72%
10.   Angry Birds20,800,000+600,000+ 3%
11.   MyCalendar – Birthdays31,700,000+600,000+ 2%
12.   İzlesene7,000,000+500,000+ 8%
13.   TripAdvisor™18,500,000+500,000+ 3%
14.   BranchOut12,500,000+400,000+ 3%
15.   Dailymotion5,900,000+400,000+ 7%
16.   Hoop De Loop Saga4,900,000+400,000+ 9%
17.   Identified4,200,000+400,000+ 11%
18.   schoolFeed11,500,000+400,000+ 4%
19.   Birthday Cards3,300,000+300,000+ 10%
20.   Il Mio Calendario – Compleanni3,800,000+300,000+ 9%

Yahoo! Reader is a web integration that generates feed and Ticker stories when users read news articles. The Washington Post’s Social Reader has similar functionality, but articles are displayed within the Facebook canvas.

Mobile game Draw Something by OMGPOP has been growing tremendously in recent weeks. This week it tied with Zynga Slingo at 1.4 million MAU.

Scribd, the document sharing site that uses Facebook login made the list, as did professional networking apps that post activity to Timeline: BranchOut and Identified. A few birthday calendar apps made the list. These ask users to invite their friends to use the app before use. Rock You’s Birthday Cards sets up a visual calendar of your friend’s birthdays, allowing you to click on their photo to customize a birthday card.

Rotten Tomatoes’ Open Graph integration allows users to share their movie reviews and movies they want to see. Flixster works similarly, but the app also allows users to send each other full-length movies to watch on Facebook. Open Graph video sharing sites İzlesene and Dailymotion made the list and music app Pandora did, too.

Finally, the long-awaited Instagram Android app was just released last week, pushing the photo app to No. 8 on the list.

All data in this post comes from our traffic tracking service, AppData. Stay tuned for our look at the top weekly gainers by daily active users on Wednesday, and the top emerging apps on Friday.