There are a thousand reasons not to go to the gym. Most of them, like lack of time or fear of being seen in spandex, are unfortunate. Here's one for the plus side: YouTube has hundreds of fitness channels to get you in shape at home. And some are pretty good.
Many channels retain their grass roots, dispatches-from-the-living-room feel. Others go for professional production rivaling pricey DVD counterparts. Either way, each channel brings its own stars, style, online community and signature instruction. Though the channels below are only the tip of the iceberg, they represent a good sampler platter of YouTube's fitness offerings and each has plenty of workouts requiring little to no equipment.