Linux-Netbook.com is dedicated to small laptops running Linux based operating systems like Android, Chrome OS, Joli OS, Linux Mint, MeeGo, and Ubuntu. We encourage and support using free and open source software.
Buy.com offers an Asus Eee PC 900-W073 running Linux for US $174.99 (list price $419.99). The 8.9" pearl white netbook is powered by a 900MHz Intel Celeron processor, has 512MB RAM, 4G SSD, and ships with Xandros Linux preloaded.
For details see buy.com's Asus Eee PC 900-W073 product page.
The black model Asus EEEPC900-BK072 is also available for US $174.99.