The document discusses what is popular and trending on Facebook as of October 19th, 2011. It lists the top 10 most used Facebook applications, integration, and developers based on data from AppData.com. It also lists the top and bottom 10 most popular Facebook pages from the same source.

1. What's hot on Facebook 19 th October 2011 Dave Nattriss – natts.com Limited Facebook Developer Garage London Secretary, webmaster & communications The most popular/most used and hottest (fastest growing): applications/integrations

2. developers

3. brand (fan) pages

4. 'Active users' are now definitely active

5. Popular Facebook applications/integrations Top 10 of 86,527 known apps Top 10 of ~19,100 known apps on AppData.com

6. Most regularly used Facebook applications/integrations Top 10 of 86,527 known apps Top 10 of ~19,100 known apps on AppData.com

7. Hottest Facebook applications/integrations Top 10 of ~23,100 known apps on AppData.com Top 10 of 86,527 known apps

8. Popular Facebook application developers Top 10 of 86,527 known apps Top 10 of ~2,000 known developers on AppData.com

9. Popular Facebook pages Top 10 of 86,527 known apps Top 10 of millions (vanity URLs only), from http://www.appdata.com/pagedata

10. Hottest Facebook pages Top 10 of 86,527 known apps Top 10 of millions (vanity URLs only), from http://www.appdata.com/pagedata