The stereotype of the isolated programmer has become old and tired and if it was ever really true it is far from true now. Coding has become a social activity with online communities, applications and resources dedicated to bringing communities of coders together to share ideas, give each other a helping hand to solve problems and to innovate together.
I have put together this list of my three most useful resources that I use when coding. These are all great for collaboration. Useful in their own way and tools now I have started using them leave me wondering how I got by without them.