I d say disqus strikes the best balance. You don't have to retype your name on each site, You can be as private as you wish and there are proper discussion thre

I d say disqus strikes the best balance. You don't have to retype your name on each site, You can be as private as you wish and there are proper discussion threads. They need to work on speed and user interface. I also comment on blogs that don't require signup Facebook's comments have the wrong order and are not threaded. Plus there is in them, just like everywhere in Facebook a sense of social competition to view only the most liked/commented post, hiding everything else unger the fold. And disclosing your name / job every time means you have to be careful what u say.