Having converted this blog to a relief blog soon after the tsunami (the project has now moved here) I cannot help notice the similarities with Katrina. WeBranding is one blog that seems to have done just that. The relief site is now at this link. It links this Katrina Data Project, for instance.

There’s also this Hurricane Watch blog.

But it’s not just the bloggers who are providing great coverage.
Check this Lexis Nexis site.
Then, there is the Times Picaune site, NOLA, that’s doing a terrific job.
I also recommend a look at this book project, First Book, a non-profit organization that is now helpng children affected by the hurricane.