There's cockteasing and then there's sites like RobAndJill. This has got to be one of a very small handful of sites devoted to hardcore cock tease handjobs. Rob will have an orgasm once every few weeks which will strike most guys as absolutely insane - there are eunuchs that have more orgasms than that. This is basically a single couple site so if you like the looks of Rob and/or Jill, there's a chance that you'll love this site.
The website basically consists of this Jill (the wife) teasing Rob (hubby) and giving him handjob after handjob while never letting him cum. Rob is constantly on the verge of cumming but Jill has triple-decker orgasms in practically every scene. Mind you Rob cums his brains out during the twice monthly occasions when his wife actually allows him to blow his load.
There are also a few scenes in which Jill encounters a mechanical fucking machine, but the bread and butter of the site still basically consists of the kinky teasing between man and wife.
There is a huge amount of content ready for download here. You can browse through 400 or regular-res photo sets which mostly cover the cockteasing action as well as some nice solo masturbation scenes starring Jill. There are also about 600 downloadable vids that come in several different formats including an iPod compatible one that offers stellar-quality playback. Some of the older stuff is mediocre at best. Updates happen twice a week, so expect plenty of more content on your way.
After you get your fill of cockteasing handjobs, you can wander into the massive bonus section. There are a whole lot of vids ready for downloading and it's all hardcore. Rob may not be able to cum, but you'll be pumping out orgasm after orgasm as you go through all of these videos. Members also get access to streaming video sites and a bunch of other extras.
This site is very affordably priced and it'll provide you with a wealth of content. Be warned though, it leaves a lot to be desired in terms of navigation and design, so you might lose your patience with it before you get around to enjoying it.