The loss included charges associated with making an initial public offering in December, Andover.Net said today.
The company's revenues grew 103 percent in sequential quarters, from $1 million in the quarter ending Sept. 30, 1999, to $2.1 million in the quarter ending last month.
The company's net loss for the September quarter was $3.1 million, or 40 cents per share.
Andover.Net hosts several sites popular among Linux fans and technically savvy computer users. Also today, it announced the acquisition of QuestionExchange, a site that will fit into Andover.Net's plans to make more money from services.
It main revenue source, advertising, earned the company $1.3 million in the quarter.
"Our advertising revenues more than doubled from our previous quarter," chief executive Bruce Twickler said in a statement.
Linux is an operating system cloned from Unix and competing with Microsoft's Windows. It's collaboratively developed by hundreds of programmers, some independent and some working for Linux-specific or other computer companies.
Andover.Net is one of several Linux-related companies that went public in 1999, including Cobalt Networks, VA Linux Systems and Red Hat. More Linux-related IPOs are scheduled, including Linuxcare and Caldera Systems.