We round up this week's most intriguing items from around the Web.
Online multiplayer games are booming. But can Internet technology keep pace?
MIT luminary Michael Dertouzos dies at 64.
Our reporter visits a "cave" to see how virtual-reality environments can illuminate art as well as science.
Got a yen to write? A free Web-based encyclopedia takes contributions from anyone.
How zinc-air batteries work.
New diagnostic devices could save an ER visit.
Wilson Greatbatch's mistake sparked the medical-electronics industry.
Monsanto wants to monopolize basic methods in agricultural biotech. A badly misguided patent office stands ready to help.