You can Share on Twitter, you can share on Facebook, You can share on StumbleUpon, Reddit, and Digg.
You should be able to share on LinkedIn.
On your Sharing page
you can pick the sharing services you wish to offer on your blog. For those of us whos blogging subject is relevant to their careers, LinkedIn needs to be added.
The LinkedIn sharing URL is pretty easy:
Breaking it down:
then your blog post URL, with %3A substituting for : and %2F substituting for /
then your blog's name (I took out the spaces, but you could substiture + or %20 for the space)
then your title with + substituting for space (you can also use %20)
Scripting this should be a breeze (grab the url of the article, a little string substitution, and voila, you have a sharing link for LinkedIn. All you'll need then is permission to use the logo for the button (like they'd turn that down)
"What do you think, sirs?" (MST3K)
The blog I need help with is dlairman.wordpress.com.