Learnkabbalah.com is a free archive of Kabbalistic teachings, texts, and resources. It was created in 2005 by Jay Michaelson, who was at the time a student of Kabbalah both in academic and traditional contexts. Although it is no longer regularly updated, the site remains as an introduction to Kabbalah from an intellectually credible, yet spiritually engaged, perspective.
One of the meanings of Kabbalah is "receiving," which suggests both the received-tradition aspect of Kabbalah (it is a very old body of knowledge, originally passed directly from master to disciple) and the importance of each of us being able to "receive" its wisdom.
Naturally, though, we all receive in different ways. Some people have skeptical, inquiring minds; others want a more emotional encounter with this kind of material. Some people have a lot of background in Judaism and Jewish text — others have none at all. This is what, in the Kabbalah, is referred to as the "vessel," and knowing the makeup of your own vessel is as important as what you're trying to put into it. Put in the wrong kind of material, and the vessel can't hold it. It might even shatter.
What this site tries to do, as a result, is work on multiple levels at the same time. Sometimes, we'll present the material in a way that may seem ovely academic to some people. Other times, we'll speak from our own experiences, in a way that might horrify rigorous scholars of Kabbalistic texts. Obviously, this means that not every page on the site will be right for all people all the time.
Despite the commercial aims of many Kabbalah centers today, no one owns the Kabbalah. The wisdom of the Kabbalah is too precious to be left to commercial enterprises, hobbyists, and well-meaning spiritualists.
Finally, for every teaching on this site, you can find, somewhere, a Kabbalistic teaching which contradicts it. Every concept of the Kabbalah seems to have seventy faces, and that seems to be on purpose. Most importantly, remember that all these words are just the recipe, not the actual meal. To really experience Kabbalah, you need to learn and practice it in your "real" life. You can read all the books and websites in the world, but until you sit down with a teacher and let the teachings sink into your "kischkes" (your 'guts', but kischkes is a much nicer word), and until you put the practices into practice via meditation or prayer or religious life — you won't have really, experientially tasted what Kabbalah is about. So, consider this your invitation to the banquet.
To learn more about Jay Michaelson (now Rabbi Dr. Jay Michaelson) and his work, please visit his website.