This is me in grumpy bastard mode, because it’s 4.45am and I’m up, so I’ll just say: a batch of weblog posts isn’t a good homepage for a project. Useful to people who have been using whatever the project is since version 0.01alpha, yes. Useful to someone who doesn’t know much about the project and is trying to see whether it’s the right thing for them, no.
On I wrote Using a weblog as a project homepage, on the subject of Rants and Software.
Wordpress 1.5 now allows you to make proper ‘Pages’ rather than just weblog posts.
Pages are okay, but if you use categorized posts you have to be careful to go back to update old posts if the information has changed. You cannot expect that a google searcher will know the information is out of date (or even that “old” material is still current).
Gary writes more on this topic in inimitable style.
Any decent weblog engine allows you to categorize posts. So you can have a “overview” and “tutorial” categories.
I think it’s not so much the tool as the mindset. A lot of open source project pages give you detailed technical information about changes but don’t tell you what the project does.