Start your own blog or offer to guest post on someone else's blog. Publish single chapters/excerpts from your book as posts, with a note that promotes your book

Start your own blog or offer to guest post on someone else's blog. Publish single chapters/excerpts from your book as posts, with a note that promotes your book. I've seen this marketing tactic used quite often, and it has certainly sparked my interest more than once. Here's an example I ran into yesterday: http://alistapart.com/article/why-sass http://alistapart.com/article/why-sass