Here's an example, visit http://www.simple-talk.com/default.aspx

This (somewhat new) SQL site is pretty cool from the aspect of design... and the articles and 'How To' items are very well written. Read one of Robyn Page's articles for example. I believe this site is based out of the UK.

On the volume of info a site provides, I think this it easy to overdo. That is, some include so much info that you're simply overwhelmed. I really like the 'need help' questions on your site - I have gleaned a lot of useful info from those.