Evite, a social event planning service on the web, today announced that it has surpassed 15 million registered users, which represents a 30 percent annual increase in its user base. Evite created the online invitation category when it launched in 1998 and has grown into the only site with comprehensive party planning tools and compelling content, attracting over six million unique visitors monthly.

Recent feature additions include a Carpool tool where guests can organize rides to and from an event, a Group Travel option so guests can book hotels for destination events directly through the site, and an integrated photo sharing tool. Other popular features include a drink calculator, budget estimator and party checklist. Additionally, Evite offers unique depth in its party editorial, continuously adding new content to the more than 75 pages of party planning ideas, as their experts spot emerging lifestyle and party trends.

Evite’s free invitations remain the most popular feature of the site.

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