I enjoyed reading this analysis of internet language and found it easy enough to read. Crystal (as a linguist) focuses on analysis of text - in a number of different contexts and outputs (as he calls the various platforms) - e.g. twitter, chat, social media etc - and looks at different questions (the nature of internet language as poised somewhere between speech and text, its impact on contemporary language and grammar, the internet's multilingual nature, the rapid pace of changes, search logistics, appropriate and sensitive placing of advertisements, determining problematical exchanges (as with a paedophile grooming a teenager)etc). While he acknowledged the multimedia, hypertexual nature of the internet, I would have liked him to delve deeper into how these extra dimensions have impacted on the use of language and communication via the internet (though maybe that's because I'm currently studying Online Writing which emphasizes those aspects).