You're welcome. Most people find the supplier information most useful, though. (Sad to say, no one has yet told me that they found the Bayes formula and discount-rate section most useful! One day...) Your UK rate sounds possible once I convert pounds to dollars.
Many people on LW have expressed interest in nootropics and cognitive enhancement. However, since people are presumably interested in the long-term efficacy, side effects and withdrawal symptoms of using various supplements, open-threads (which quickly become hard to navigate and only last a couple weeks anyway) are a sub-optimal place to discuss the topic.
So I thought I would create a permanent area for people who want to discuss the topic long-term.
Here are some "quick links" courtesy of gwern:
And Wikipedia's main page on the topic.