Google Discussion Search is probably one of my most used features on Google and I was sad to see it removed from the "More" tab near the beginning of the year. For months, I've been accessing it from [google.com...] as an alternative.
Sorry, Andem. I missed that. You can try adding the word "forum" or "discussion" to the end of your query. Not the same thing as what Discussion Search gave you, but different from the plain vanilla search, and sometimes helpful.