Today I wrote an extension for BlogEngine.NET. Basically what it does is when you publish a new post it add a link to it on your del.icio.us bookmarks. I consider this an v0.5 release because there are still a few things I need to do. A roadmap for now is

1) Better comments/documentation
2) cleanup the code a bit
3) add error handling
4) delete the bookmark if post is deleted
5) make sure it doesn’t add another bookmark when you hit save after editing a post.

Other possibilities
1) config file
2) Suggestions from others

Download BlogEngine.NET Extension for Del.icio.us