The more people who read and contribute to Wikitravel, the better it becomes, and the closer we get to our goal of making a free, complete, up-to-date and reliable world-wide travel guide. There are a number of ways to promote Wikitravel; the following are some that you can help with.
Word of mouth. Tell friends and colleagues about Wikitravel -- especially those who are interested in travel. Make sure to give them the correct URL -- http://wikitravel.org/ -- and let them know that their contributions are welcome.
Recruit for specific jobs. It is often easier for people to get into Wikitravel if they think in terms of specific work on specific articles. Do you know someone who speaks one of the languages that we need a phrasebook for? Or someone who's been to a place that's had an article requested?
Link to Wikitravel. If you have a Weblog, personal travel Web site, or what have you, mention Wikitravel and link to the Main Page. See Wikitravel:Badges for some nice images to use on your site.
Make good content. The better our travel guide is, the more people will come back to it, and talk about it, and recommend it to their friends. Any time you spend making Wikitravel a better site will help generate more traffic -- and thus make it an even better site.
Make popular content. Watch for topics and destinations that people want to know about -- lists of top destinations in newspapers and magazines, places in the news, etc. (How to do this, though?) Make sure we have articles about those places or topics.
Suggest URL to blogs and other Web sites. If you regularly read a Web site that's concerned with travel, travel writing, or Open Content, send an email (or use whatever feedback mechanism is available) to suggest the URL for Wikitravel.
Write articles about Wikitravel. If you write for a magazine, a newsletter, or a Web site, try submitting an article about Wikitravel to that publication. Try to make the article interesting and cogent to the publication in question. You might want to discuss Wikitravel as an Open Content effort, for example, or maybe you'd rather take the angle of peer support for travelers. In any event, try to sound less like a zealot and more like an interested party with something valuable to say.