This brief article over at TechWeb talks a bit about Friday's debut of tech IPOs. Even though the day itself was a rather slow day for the rest of the high tech market, the three new contenders: NVIDIA, Allaire, and Covad, were able to post some pretty impressive gains. Here's a clip from it if you don't feel like reading: Despite not being a direct Internet play, Nvidia rose 64 percent on its first day. Although the graphics chip-set industry has seen some rough times recently, investors bought into Nvidia because 3-D graphics accelerators are becoming part of the standard PC set up, Menlow said. "Nvidia is doing business with all the established big names," he said.