Roger Laing is a writer, journalist and tweeter who covers all things business and technology-related. He has written and edited many books and magazines on social media, PCs, the Internet, web design and information technology - as well as travel. He has an MA in Experimental Psychology from Oxford University. Mark Mayne (series foreword) is Editor of T3.com , the UK's leading consumer tech lifestyle website, and has been writing on technology-related subjects for many years. His background is in daily national news and pureplay digital publishing, copywriting, consultancy with specialist knowledge on consumer technology, SEO, social media and b2b technology.