One of the most powerful ways to develop web site traffic is to enable your users to share their content through your web site with others--to create community around user generated content.
Many of the fastest growing web sites of all time did this (or do it now): MyFamily.com, eBay, GeoCities, Xoom, Homestead, MySpace, Epinions, Hotshots, LinkedIn.com, Meetup.com, Friendster, and more.
I've never met Brewster Kahle, inventor of WAIS, co-founder of Thinking Machines, founder of Alexa and digital librarian for the Internet Archive. But I've watched his contributions over the years and have admired his Vannevar Bush-like vision. (If you have never read the 1945 Atlantic Monthly article by Vannevar Bush titled "As We May Think", you're missing out on the original "access to all knowledge" brainstorm.)
I am happy to report that I have offers from entrepreneurs to translate my blog and resource pages into Polish, Portuguese and Italian. In searching for translators, I also learned about a software programmer named Joel Spolsky who started a blog called Joel on Software in 2000. His blog is translated into more than 30 languages.