It seems like new research and new statistics are hitting the Internet daily. So, keeping track of all the latest social marketing statistics can be tough. To help you out, we've compiled a list of 81 statistics that have helped us in 2011. Did we miss a few really good ones? Be sure to let us know in the comments.
Twitter
1. Since April, Twitter has gained 40 million users and a 62% increase in mobile use of the platform. (ClickZ)
2. From December 2009 to December 2010, users with a biography listed on Twitter increased from 31% to 69%. (Pew)
3. Friday at 4 p.m. ET is the most retweetable time/day of the week. (Dan Zarella and HubSpot)
4. 48% of Twitter users either never or rarely check Twitter. (The Next Web)
5. Americans spend 2 hours, 12 minutes per day on Twitter. (Experian)
6. 62.14% of Twitter users are in the US. (Sysomos)
7. 66.93% of iPhone users who utilize Twitter are in the US. (Sysomos)
8. 51% of active Twitter users follow companies, brands or products on social networks. (ISMDealers)
9. 20% of tweets are about products such as invitation for product information, answers or responses from peers or directly by brand representatives. (ISMDealers)
10. 44% of Twitter users have recommended a product. (ISMDealers)
11. 80% of Twitter usage is on mobile devices, people update anywhere, anytime. (ISMDealers)
12. 58% of people said if they had tweeted about a bad experience, they would like the company to respond to their comment. (ISMDealers)
13. Used by just 8% of Americans. (Convince & Convert)
14. 55% of users are white, 22% are African-American, 15% are Hispanic and 3% are Asian; more diverse than Facebook. (Convince & Convert)
15. 23% of the “super socials” (habitual social networkers) use Twitter. (Convince & Convert)
16. Most users interact with brands for customer service. (Convince & Convert)
Facebook