With a badge for each and every social bookmarking site an option, avoiding the bottom of your post looking like the arm of a dedicated boy scout is a concern that must be addressed by the discerning blogger.

This is a problem that Aza Raskin decided to address, and has done so rather successfully by all accounts. Rather than selecting a choice few or go the whole nine yards and represent everything available, both of which risk the alienation of a proportion of readers, Raskin created a workable solution for everyone. A piece of JavaScript that is able to tell where your blog readers have been recently, and in light of the information it digs out, present suitable badge options.

It works on the same bit of clever stuff that makes a link you’ve been to previously change colour, so you know where you’ve been, as you fly from one corner of the webosphere to the other. It is interesting and inventive stuff, and available at his site.

Via RWW