I've written a feature on preparing to take the plunge to go freelance for online magazine Creative Boom. I wrote a similar feature what do do before going freelance as a writer, but this has been adapted for the creative industries more generally, which Creative Boom helps to support.
Creative Boom is a great and dynamic site, offering a huge amount of information and support to the creative industries as well as a network to be involved in. Katy Cowan, of Boomerang PR, heads up the site.
Very worth taking a look at some of Creative Boom's other features and taking time to read some of the valuable stuff on there!