You've bought your iPad. Congratulations! So are you ready to learn all the ways you can get the most from your new purchase? Here's a quick run-down of some indispensable resources as you're getting up to speed with your new purchase.
Read the manuals: The iPad User Guide (pdf) provides an in-depth review. This user manual is not included in the iPad packaging. Instead, Apple hosts it on its support site. This 154-page long (!) guide covers all the basics for using the iPad and understanding how it works. If you'd like to convert this PDF-formatted guide into a format (called "ePub") that you can use to read on your iPad, there's a handy website called epub2go that will handle the conversion for you. After transforming the file to epub, just drop it onto your iTunes library and sync it to your iPad. You'll be able to read the book using Apple's free iBooks application. It won't look as nice as a standard ePub document, but you'll have it in mobile form.
Take a guided video tour: Apple has posted videos that introduce many of the iPad's new features, including Safari, Mail, Photos, iPod, and more. You can watch these videos to get an idea of how each of these features work, and pick up a few pointers along the way. These aren't really meant as tutorials; they are marketing videos, but they can also work to introduce the iPad to you.
Read our iPad 101 series: TUAW regularly posts tips and tricks for new users via our 101 posting series. In addition to the iPad, we often post Mac 101 and iPhone 101 hints, suitable for those just getting started with a new platform. These write-ups help introduce new concepts and don't assume that you're already an expert.