Last night I added some new links into all posts to make it easier to link posts from this blog on social bookmarking services. If you are logged into one of these services, just click the link and the work should be done for you. I picked these five because they seem to be most popular. Let me know if you would prefer to see different services represented here.
If you want to add something like this to your own blog, see this post from Freshblog and this post at blog.del.icio.us, which explain how to do it. Basically you add a bit of code into your post footer in the template. For the code to link over 100 social bookmarking type sites, see 3spots. Quick Online Tips also has a full list of tools to use with del.icio.us.