It is quite long (64 pages). I have read the summary and the first 14 pages. I am not sure if any one other than the author has read through to the end.
I too got to page 14 and thought, mmmm I'll finish this later. However the discussion up to that point was helpful and it's nice to get a feel for the history of Web 2.0 plus a concise description of key phrases - blogs, wikis etc. So thankyou, great article, I'll endeavour to read it all!