Over on Search Engine Guide, there is a great post about nine general ideas you can use as a blogger if you are stuck. It includes things like re-igniting old topics, crediting other bloggers, and creating a compilation.
From the post:
Credit Other Bloggers: In any given week there are dozens of posts and articles around your industry which people should definitely read. This is your opportunity to categorize these other posts and spread some link love. Both Search Engine Land and Marketing Pilgrim both do this on a regular basis.
While it may not be every bloggers cup of tea, it does give out some good ideas for bloggers that talk about blogging specifically. Not that the post couldn’t be further generalized to appeal to every type of blogger. Check it out on Search Engine Guide.