Jane Friedman, of the blog - There Are No Rules, has rounded up five e-book resources that every writer should read. Best of all they're free! Here's the list she's made available, along with links for downloads.
1 - 70 Solutions to Common Writing Mistakes by Bob Mayer
2 - 279 Days to Overnight Success by Chris Guillebeau
3 - How to Write a Great Query Letter by Noah Lukeman
4 - What Publishers Want: An Author's Guide by Greenleaf Book Group
5 - Smashwords Book Marketing Guide: How to Market Any Book for Free
I've downloaded each, but haven't dug into any yet. Feel free to let me know what you think of each. Are there e-books out there you think every writer should read? Share them here in the comments.