I've had to use a FF add-on to block all the Q&A sites. Any time you type a question into search, these things dominate the front page. I know that two of them are now having writers turn out thousands of articles a day, just like the content farms used to do, so they can dominate the front pages. Are you running into this problem? Used to be, if you made your post/article header a question or a how-to, you could get a pretty good ranking, since that's what most people type in. Now all that gets you is pushed back to page 3 behind all the duplicate posts on the Q&A or how-to sites. I wonder how long it will take Google to do something about this? Seems these sites are paying for a lot of ads, too, so Google may not want to mess with them. Honestly, the content farms had better information than the crap on these sites.