Every blogger hits a "writing block" every now and then. Most good bloggers overcome it and just go on, stronger and better than ever. Some other good bloggers get stuck in the "writing block" and their web sites join the virtual cemetery of dead blogs respectfully maintained by GruntDoc.
Below are a few links which should help your blog engine keep humming along:
101 Great Posting Ideas That Will Make Your Blog Sizzle. I Help You Blog.
Find Great Free Photos for your Blog. LifeHack.org.
The 4 Motivations for Blogging. LifeHack.org.
Be More Than a Blip in the Blogosphere. Washington Post, 11/2007.
This Google video shows it takes about 2 minutes to start a blog on Blogger.com. Creating a web site has never been easier.