mine but that's probably a little excessive! Try 10. Mix it up by choosing a range of blogs, a webinar or two, some radio shows, and maybe a few review sites. Then query them with an offer (it usually helps to offer your book). Begin setting up dates and times as responses come back (I use Excel and Google Calendar to keep track of mine), and when you've got enough positive responses you're ready to begin touring. It sounds easy, and it is, though the process takes time and the only way to do it right is to query each stop individually, specifically tailoring your offer to them, offering something unique and of value to each host.
At this point you can begin advertising the tour. Put the dates on your blog, tweet it, set it up as an event on Facebook, and start the buzz. Then comes the fun part - you have to write your blog posts. If you're promoting a new book, then already well-used existing blog posts won't do - you'll need to write new, fresh, relevant ones just for the tour to draw in readers, since that's the whole point of it (that's why 20 is, ahem, excessive). Get your posts to your hosts at least a week prior to the posting date and include all graphics and some suggested tweets for them. They're doing you a favour so make it easy for them. Add a giveaway or two and you're on.
Online networking is critical in the book world and whatever you do to help others will definitely come back to you, so be generous in your support of other authors and generous in your own hosting and you'll find the process of gathering stops for your tour relatively easy.
That's it! But before you go, please take a little moment to re-tweet this one (use #blackcow), comment, or share it on Facebook, and you'll go into my draw to win one of a number of autographed bookpacks, electronic sets, and limited edition signed promotional items like magnets, stickers, books, bags, and postcards. And don't forget to invite me to your tour - I'm looking forward to it.
Magdalena Ball is the author of the newly released novel Black Cow. Grab a free mini e-book brochure here: http://www.bewritebooks.com/mb/BlackCow/BlackCow.html
or visit the Black Cow booksite.