Ask HN: What not-so-well-known website do you check at least once a day?

The local news website of where you live. It can be fascinating to read what goes on in your own neighbourhood.

Why Evolution Is True,

which includes a lot of personal posts by the site's keeper, but also includes very interesting posts about cutting-edge research in biology.

Kindle Desktop Publishing, to see if my short story has sold any copies (the answer is nope).

Webmaster world - good info about what's what in the webmaster world.

hackaday.com - hardware/software hacks, pretty technical but some real gems pop up here

bitcointalk.org, the home of occasional bitcoin news but usually just drama