In the Personal Documents Settings on Amazon’s Manage My Kindle page, add sampler@bibliocrunch.com to your Approved Personal Document E-mail List under Personal Document Settings (take note of your Kindle email address for step 2).
Enter your Kindle email address (need help?). If you have a Kindle 3 with WiFi access, you should use the @free.kindle.com. You’ll get BiblioCrunch ebooks anytime you’re in WiFi range. If you have an older Kindle, use your @kindle.com address.
(Use username@free.kindle.com or username@kindle.com as your email address.)