I’m all for advertising on the Web. But lately it seems that the content to ad ratio isn’t in favor of us readers. So, Arc90 is taking matters into their own hands. They’ve created a simple bookmarklet (or a small piece of JavaScript that you run by clicking on a bookmark in your browser) called Readability.
In short, Readability removes ads from around the content. However, unlike its predecessors (at least the ones I’ve seen) Readability also formats the article that you want to read into a much more readable design on the fly. So, ad-blocker plus.
Source: Readability.
See also: The Arc90 Lab’s blog post with video.