Where can I post a basic SQLite and SQL.NET guide, if I make one? I noticed that there is not a lot of good material out there for the C++ side and I know that it would be really helpful.

Moved to the lounge, as the connection to software engineering is dubious at best.

I imagine if it's well written, you could submit it to gamedev as an article, although you'd probably have to demonstrate some use in game development. Or you could alternatively start a blog and post stuff there. Or make your own website. Or discuss it in a programming newsgroup. There are lots of places to share knowledge on the internet.