There are three main places to ask (La)TeX-related questions in English:

Each has a different mix of people, and I wonder how much cross-over there is. The LaTeX Community forums seem best for the newer user, as there is a lot less complex information than in the newgroup or on texhax. I’d say that the newgroup is the most active of the three, with texhax a relativity quite list. Of course, there are also ConTeXt-specific places to talk. I wonder how much regulars of each ‘place’ know about the other ones?