What's On the Weekend

Professional

The Adidas Track Classic, an IAAF permit meet and the third stop in the VISA Championship Series, will take place at the Home Depot Center in Carson, CA, on Saturday. ESPN2 will do a live broadcast from 8 to 10 p.m.
Meet website / IAAF page / USATF page
IAAF preview / USATF preview / USA Today / Carribean Net

The Ponce Grand Prix, an IAAF permit meet, will take place in Ponce, Puerto Rico, on Saturday.
Meet website / IAAF page
IAAF preview

The GP Rio Caixa de Atletismo, an IAAF permit meet, will take place on Sunday in Rio de Janiero.
Meet website (in Portugese) / IAAF page
IAAF preview

The BUPA Great Manchester Run, an IAAF Gold Label Road Race, will take place in Manchester, UK, on Sunday. Part of the festivities will include a 150 meter street race featuring Usain Bolt.
Race website / IAAF Preview / Street 150 webcast link
SkySports / Athletics Weekly / Jamaica Gleaner

The ING Bay to Breakers, aka "The Sickest Traveling Party in the World", will be run through the streets of San Francisco on Sunday morning--and the ban on nudity and alcohol will almost certainly be ignored.
Race website / unofficial website
Let's Run preview / Runner's Web / SF Examiner / SF Chronicle

The Healthy Kidney 10k will take place in New York's Central Park on Saturday morning.
Race website / IAAF preview

College
Conference Championships:
Pretty much all of 'em. The biggies:
Big Ten - Columbus, OH, Friday thru Sunday
Men's preview / Women's preview

Big XII - Lubbock, TX, Friday thru Sunday
Preview

SEC - Gainesville, FL, Thursday thru Sunday
Preview

Pac-10 - Eugene, OR, Saturday and Sunday -
Preview

And the rest

TV
The Adidas Track Classic will be broadcast live on ESPN2 on Saturday from 8 to 10 p.m.

The Jesse Owens Classic will be rerun on the Big Ten Network at 12:30 p.m. Friday and 9 a.m. Saturday.

The London Marathon will be rerun on Universal Sports at 6 a.m. Sunday.

The Bay to Breakers race will be covered live on KGO-TV (Channel 7) from 7:45 to 11 a.m. Sunday (local time).