That [u^ ] thing is mighty nifty, thanks Bleys.
The only alt things I know are é (0233), ß (0223) and ü (129). But it's generally pretty easy to find the other ones just by trial and error. =P
As for HTML, there are huge amounts of sites, but I do think it would be nifty to have something here with the HTML that you would be more likely to include in posts, such as- and of course the more basic
, , and so forth. I think I've managed to figure out everything I know just by looking at HTML done on other sites/posts etc, though I guess not everyone here can learn by casually clicking on 'edit/delete' for someone else's post >_>;;
