ITVF1.com
The only pieces I now read on this site are The Mole, which I find informative, reliable and well researched editorial comment on F1 and Not the F1 news purely for the humor. I used to be a regular reader but got sick of the British bias and the difficulty in going back to read the history if I wanted to compare a past story with what the current story said. Also the time it takes to load and all those flashing advertising images are very distracting.
DailyF1.com
Has some different stories and profiles from Atlas but I primarily use as a secondary source for news and opinion. There BB was the first one I joined but found that it was not very well moderated. Example, yesterday there was about 10 threads all started by the same person that should have been deleted as they were extremely offensive just looking at the titles. They had been there some time as there was another thread complaining (for want of a better word) about them. The only reason I visit their forum now is to take part in their GTG competition.
That is why I subscribe to Atlas F1