Listpic, the site I covered back in January was banned yesterday from accessing Craigstlist feeds. Listpic enabled users to browse through Craigslist by pictures rather than text. It was highly popular and yesterday Craigslist pulled the plug. There is now a forum for users to complain about Craigslist’s decision. Craig Newmark, the founder of Craigslist, said that the site was slowing down the site. I’m a bit skeptical of this but from a competitive standpoint, it makes sense that Listpic was banned. Conversely, Listpic helped increase the usefulness and visibility of Craigslist. Not sure if we’ll see the site come back up anytime soon, but this is a good example of the risk involved when basing your business on the backbone of another business. They can pull the plug at any moment!