Nile Guide, a sophisticated travel planning site that launched just over a month ago, has raised $8 million in Series B from Austin Ventures, Lehman Brothers, and existing investors Draper Richards and KPG Ventures. The round brings Nile Guide’s total to over $9.5 million.

We’re told that since launch, the site has added support for 5 more destinations: Istanbul, Vienna, Sedona, New Orleans, and Cusco. The homepage has been simplified so you can select destinations from a list. And Nile Guide now suggests particular neighborhoods that it thinks you should check out when visiting a destination.

Internet Explorer 6 support is planned for July 1st, as is support for Moscow, Shanghai, Vail, Calgary/Canadian Rockies, and Costa Rica. No word yet on when the site will work in Safari.

Also see our coverage of Dave Sifry’s Offbeat Guides.