I just wanted to post and let you know a couple things. You can also randomly earn 0.01 mBTC in CoinAd chat.
Also you don't have coinvisitor.com listed on your list of visiting to earn sites. There is also a chat there that you can earn bitcoins in. The amount varies depending on what is in the prize pool.
No one submitted coinvisitor before ( until now ) and it isn't a 'free' bitcoin site... ( or maybe it is now with what you say about the chat... ) They give out free BTC for chatting? It might qualify for the not-free-but-popular-earn-site category. Is it popular? Do you and others feel it is worthy enough for the list? I will check it out.
Thanks for the information.