Good news for WordPress.com bloggers, you now have XML sitemaps to make it easier for search engines to index your content! The feature is automatic and rolled out for everyone.
Thord Daniel Hedengren is a designer, writer, and blogger, and also the former editor of The Blog Herald. He used to be a hotshot in the gaming industry in Sweden, but sold everything and went International. Most recently he wrote a book called Smashing WordPress: Beyond the Blog, and does loads of kickass design.