Bookmarklets are bookmarks that activate web functionality instead of linking to a website. Here are my favorites.
Twitter bookmarklet – bit.ly sidebar – Tweet out the link and title of the current browser tab. There are extensions that will set up a tweet like this in a desktop Twitter client, but I prefer not to leave the browser. If you like bit.ly for click through stats this bookmarklet’s for you. You’ll need a bit.ly account for this to work.
Native Twitter Bookmarklet – Twitter’s own bookmarklet shortens links with the t.co shortener and will send the tweet from whichever account your browser is logged into.
Hootlet – Tweet from Hootsuite from within the browser. This is nice, because you can select the account you want to send the Tweet from within the pop up. Here’s how you can get the hootlet into your browser bookmarks.
Facebook Share bookmarklet – Let’s you share the current page as a shared link status update.
Tumblr Share bookmarklet – I haven’t gotten really into Tumblr yet, but I use it for some projects. If you’re a Posterous user then you’ll need the Posterous Bookmarklet instead.
Note in Google Reader bookmarklet – If you frequently share items with friends in Google Reader, this will allow you to share things from any web page, even on sites you aren’t subscribed to.
Delicious bookmarklet – Tag a page in Delicious in a popup window, or view your Delicious bookmarks.
StumbleUpon bookmarklet – Give a thumbs up to the current page.
Instapaper bookmaklet – Mark items for later reading on your phone or in your browser. Instapaper then does its magic so you can read pages later in a simple text and images format without loading a whole website.
SpringPad bookmarklet – Save items in life-organizing app SpringPad. You can Spring recipes, directions, maps, articles, and other web content and the Spring Pad will organize everything for you. It’s a lot like Evernote. Here’s LifeHacker’s review article.

Bookmarklet Combiner = Awesome Sauce
I’ve used bookmarklets for a while, but they only really became a big help to my workflow once I discovered Bookmarklet Combiner. The combiner creates a pop up menu for you so you can access your favorite bookmarklets from one link in your browser. This is super handy.
Feel free to use my combined bookmarklet by dragging it to your bookmarks toolbar, or save a copy and make it yours by swapping in some of your own favorite bookmarks. To the right you can see what the menu looks like.
Do you use bookmarklets? What are your favorites?
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