Contact peer agencies. Inform them of the launch of your website. Offer a reciprocal link to their site. Organize dedicated volunteers to promote your website. You now have a website up and running.
People are bored really easily.
That's just something we all know. Keep it interesting. That way you'll have to update your site and your visitors will always have something new to browse. Be consistent with your updates - stick to deadlines. Monthly updates are recommended for novice organizations on the web.