MY BLOG IS TOO cluttered at the moment and that's the big reason I don't have a lot of little buttons that help people add my site to their online respositories. However, I like the one-size-fits-all solution offered by AddThis. It supports most bookmarking services and feed readers. You can either use AddThis on your webpages or inside email messages. Plus, you can track things with the button.
AddThis provides statistics to bloggers about what content is collected the most on their website, blog, or email messages.
For surfers, AddThis can help you reduce the Bookmarklet clutter on your Browser toolbar by consolidating all the social bookmarking icons into a single icon. Recommended.
Amit Argawal -- "Get Rid of Messy Social Bookmarking & XML Icons with Add This"