It’s that time of year when everyone is into lists – shopping, resolutions, top this and that. Huffington Post has collected 100 statistics on social media sites from 2012, all properly sourced.

Amidst head scratchers (37 percent of Instagram users have never uploaded a photo) and some clutter (85 percent of women find their Facebook friends annoying), there are useful marketing stats. 80 percent of social media users prefer Facebook to connect with brands. 77 percent of consumer products companies have managed to acquire customers from Facebook. 26 percent of re-tweets are prompted by re-tweet requests. In August, Instagram beat Twitter in traffic to the tune of 432,000 daily users. People prefer Pinterest (43 percent) over Facebook (24 percent) to connect with retailers. Plus a whole bunch of stuff about Google+.

Check it out at Huffington Post