I would love to have some sort of browser plugin that would be a combination of this and supermemo, where, before going to bed, it would compile a sort of TL;DR summary of all of the most interesting and relevant articles I read that day, as well as those from a week ago (or whatever the optimal cadence for memory) for me to review and better commit to memory. I attempted a weak version of this the other day by simply reviewing all of the page titles in my browser history, and I think it did help a bit, but the real challenge would be in filtering it down to a short list of the information we most wish to remember, for those of us who find the web too shiny.
A place to discuss potentially promising methods of intelligence amplification in the broad sense of general methods, tools, diets, regimens, or substances that boost cognition (memory, creativity, focus, etc.): anything from SuperMemo to Piracetam to regular exercise to eating lots of animal fat to binaural beats, whether it works or not. Where's the highest expected value? What's easiest to make part of your daily routine? Hopefully discussion here will lead to concise top level posts describing what works for a more self-improvement-savvy Less Wrong.
Lists of potential interventions are great, but even better would be a thorough analysis of a single intervention: costs, benefits, ease, et cetera. This way the comment threads will be more structured and organized. Less Wrong is pretty confused about IA, so even if you're not an expert, a quick analysis or link to a metastudy about e.g. exercise could be very helpful.
Added: Adam Atlas is now hosting an IA wiki: BetterBrains! Bookmark it, add to it, make it awesome.