danielfaerber

If you install this plugin on your blog, your visitors get two buttons below your posts and pages:
<ul>
<li>A Facebook “share” button</li>
<li>and a Twitter “tweet” button.</li>
</ul>
These are not the standard Like- and Tweet-Buttons, which also display how many people have clicked on it so far, but basically pure and simple html-links.
DISADVANTAGE:
<ul>
<li>Less interaction.</li>
</ul>
ADVANTAGES:
<ul>
<li>It’s faster. Your blog does not have to contact Facebook’s and Twitter’s servers.</li>
<li>Better privacy. No information about your visitors is sent to Facebook or Twitter. Nota bene: Facebook’s standard like button allows Facebook to track your visitors even if they do not click on it!</li>
</ul>

Fastershare

This plugin allows your visitors to share your posts on Facebook and Twitter, without JavaScript or iFrames.

LaClave

The MasDetalles share plugin to help people share, bookmark, and email your posts and pages using Masdetalles share. New: MasDetalles share.
MasDetalles Share le permite compartir sus enlaces en el marcador social Masdetalles.do desde su blog, email, tienda virtual, y cualquier pagina web.

Masdetalles Share

Help people share, bookmark, and email your posts, pages, your favorite links through MasDetalles.do

Fastershare vs Masdetalles Share