My good friend Tim is in the midst of putting together The 21 Day of WordPress. Tim is a fantastic WordPress developer (among other things) so there’s no doubt he’s going to have some tips and tricks that are worth their weight in gold.
So far this looks to be an invaluable resource for anyone develops blogs. It’s also something that someone who blogs or is considering using WordPress would find valuable, if only to better communicate with the person who is setting up their blog. If you fit in either category, it’s worth a look.