I discovered this site lately, plenty of interesting bits, especially for beginners, but there's plenty of bits of info for everyone. The brewing worksheet pdf is very handy.
http://www.brewerslair.com/index.php?p=brewhouse
Lots of good info on that site.
Here is a good site for diyers
https://www.pinterest.com/brewriverside/homebrew-hacks/
Do we have a thread for sites if interest?