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" ),,Ă*/9Ă/.Ă4(%Ă" ) 24(Ă/&Ă4( %Ă0# Ă P Ă -)4 SĂ-AGAZINEĂOFĂ)NNOVATION IeY_Wb CWY^_d[i -OBILEĂGADGETSĂ ANDĂTHEĂWIRELESSĂ 7EBĂCREATEĂ #ONTINUOUSĂ #OMPUTINGĂĂ AĂPOWERFULĂNEWĂ WAYĂTOĂCONNECT Ă "YĂ7ADEĂ2OUSHĂP #OOL Ă&UN 3UMMERĂ3TUFFĂ Ă "YĂTHEĂ%DITORSĂP 4HEĂ.EXTĂ$IET .UTRITIONALĂ 'ENOMICSĂ "YĂ#ORBYĂ+UMMERĂP )SĂ4HEREĂAĂ"USINESSĂ INĂ"LOGGING Ă Ă "YĂ!NDREWĂ-ADDENĂP 7ITHĂROBOTĂ CENTERFOLD Ă P Contents 8 Contributors 10 People and Organizations Index 14 From the Editor The Hundred-Dollar Laptop 16 Letters Your thoughts on intellectual property, maps, the military, and more R EADM E Read before operating this magazine 17 Putting the Fun Back in Tech 18 Wireless Nonstop Volume 108, Number 8 Social Machines The proliferation of wireless devices, Wi-Fi hot spots, and easy-to-use websites is changing how we interact: call it “continuous computing.” Computers made us more efficient; now they’re making us more social. 18 Double-Helix Diet? 44 18 Computing Is a Trip D EALFLOW BY I N V I TAT I O N 33 Funding of Innovative Startups Phenomix, Avidia, and more By Andrew P. Madden 43 Socialized Computing The founder of craigslist is obsessed with customer service. By Craig Newmark F O R WA R D Emerging technologies in brief 23 Home Smart Home Making building-automation practical 24 Global Wind Power Meeting the world’s electricity demands 26 Cosmic Competition NASA seeks ideas from outsiders. FI NANCIAL I N DICES The TR Large-Cap 100 and Small-Cap 50 F E AT U R E S 35 Up, up, and...which way? East. Some Asian tech stocks look cheap. By Duff McDonald 44 B R I E F CAS E 54 Your Genomic Diet Your genetic profile could tell you how to s