Bookmarklets are, IMHO, being used for more and more funky functions.
I really like the Facebook and Tumblr bookmarklets that scoop out information about the type of content you want to post and then sends them off to the respective sites.
NewCommand line for non-techies
I've published 37 videos for new developers, designers, UX, UI, product owners and anyone who needs to conquer the command line today.
So prompted by this opinion, I've compiled a list of tips I've learnt from writing various bookmarklets, from simple jQuery injection to the Speech Bubble app.
Please have a read if you're interested in Bookmarklet Coding.