Two companies have launched portal sites to capitalize on the wave of enthusiasm for Linux. First up, San Francisco, California-based Linuxcare Inc has launched what it claims is the world’s first round-the-clock Linux support site. The Linuxcare Knowledgebase is geared toward IT managers of Fortune 1000 companies. The site’s engine retrieves and indexes current Linux technical support information, combining it into a single repository. Support staff categorize, cull and clean the data. The Linuxcare Knowledgebase runs on SearchCafe Development Corp’s three-tier Java-based architecture and uses IBM’s Intelligent Miner for Text. An Oracle 8 database stores the information. In other Linux portal news, Mountain View, California-based VA Research Linux Systems has paid an undisclosed sum to Linux developer Fred van Kempen for the linux.com domain name. VA plans to turn that site into a community portal with the help of an advisory board that includes van Kempen, Linux World’s Nicholas Petreley, VA’s own marketing manager Chris DiBona and Rob Malda, 22-year-old creator of hacker site Slashdot.org.