Possibly the coolest web concept ever (present company excepted, of course) is Common Craft, a kindhearted company making free videos to explain all manner of tech-type stuff "in Plain English."

When Geekbrief goddess Cali Lewis interviewed Lee LeFever, one of Common Craft's founders, she said his Twitter in Plain English video had instantly converted two non-techie family members to social networking/micro-blogging site Twitter. (And this after months of nagging - Common Craft clearly has near-magical qualities).

By far the site's most popular video - with over 336,000 views so far - is RSS in Plain English. Enjoy: