These were a dime a dozen a few years ago, all the ones I bookmarked eventually stopped working, now I just suffer through it. I've considered downloading firefox just for this feature, but it's just not worth the hassle of finding all my extensions and apps again.
Yeah, I switched to Firefox for the same reason. I wanted to use Chrome though, so I made the bookmarklet to optionally use the Mozilla readability software as its backend. You can host everything this bookmarklet needs on a local machine, so hopefully it won't be one the services that eventually stops working...