Blog of my friend Chris Tufnell ive known for a long time, always puts forward good reviews upon various gaming titles, and advents he attends through work
Morten Hedegren 'mazy', is an extremely talented map designer that ive known for many years, and now works for IO Interactive in Denmark. His blog is always a good read, full of various reviews and opinons
General gaming development community site, although focus'd upon level design and development. Lots of really nice guys on the forums, and definately a great place to get good constructive crit
CGTalk is a huge community for extremely talented designers, ranging from all types of media medium. If you want to see how far people push digital art, here's definately the place to go, it'll blow your mind :)
A List apart is full of useful information for web designers and developers, very good articles on particular aspects which have definately answered some of my questions in the past
Another great resource for articles related to web development, just like above - it's a must for your RSS reader to keep up to date with latest development technology
I Love Jack Daniels is yet another great resource from a UK developer, his cheat sheets are particulary useful to have a print out of, and leave on your desk!
Four-Kings LTD are UK's first pro-esports team. I designed all of their clothing which is worn accross the globe at professional gaming events like The CPL.