Mahalo Share is a Firefox extension that allows you to easily share and recommend links across 12 different bookmarking and blogging services such as Twitter, del.icio.us, MySpace, Ma.gnolia, Jaiku, your Tumblr blog, Facebook, Pownce, StumbleUpon, Mahalo, Faves, and Google Bookmarks.

Mahalo Share allows you to share and recommend Web pages across many different services with various APIs. You just need to recommend a link once and it will automatically posted to any of Twitter, del.icio.us, Ma.gnolia, Jaiku, your Tumblr blog, Facebook, Pownce, StumbleUpon, Mahalo, Faves, or Google Bookmarks, based on what you have selected. Mahalo Share done all this cross-posting in the background and there aren’t additional popup windows to fill out for each service.

To share the page you’re viewing, simply press Ctrl+Shift+S or a toolbar button next to the Address bar. Then, fill out the form that pops up and check the services that you want to post to. Mahalo Share will automatically post your link to all of your services.

Now you can store your account passwords with Mahalo so that you can use Mahalo Share on more than one computer without retyping all of your account information. Just click the checkbox titled “Link my login data with my Mahalo account” in the Mahalo Share options dialog.

You can download the Mahalo Share extension from https://addons.mozilla.org/en-US/firefox/addon/6396. For now it has 12 different services, but more services will be added over time.