If your business uses Google Docs, and you have ever wished that something similar to YouTube existed for business use, Google Video for Business should suit your needs nicely.

If you've got a large enough download limit and enough disposable income, Apple's iTunes Movies service provides the option to rent and purchase movies in standard or high definition. It's easy to use and has only minor drawbacks.

YouTube's popularity has spawned a number of copycat sites and even paved the way for online entertainment networks that allow users to freely stream content and download it for use elsewhere. Blinkx is one of the bigger ones.

BT Podshow offers millions of hours of music, games and videos for use on a PC or portable media player, with much of the video content created by the viewers themselves.

It works with Apple's customary ease of use, the quality is good and the selection of programmes extensive, but we're not convinced of the economics of paying nearly $2.99 an episode, when there are free alternatives.