NEW YORK (

TheStreet

) -- Popular searches on the Internet this week include "BART," the abbreviation for Bay Area Rapid Transit, after computer hackers launched two attacks on the transit Web site in one week.

BART has been facing strong opposition since shutting down cell phone service last Friday to avoid protests following the police shooting of a transient in July. On Sunday, hacktivist group Anonymous poached the San Francisco area company's Web site, defacing pages and posting user information online. A second attack on the Web site occurred Wednesday, when more than 100 BART police officers' private data as published. A self-proclaimed first-time hacker took credit for Wednesday's attack.

Anonymous is currently organizing a second live protest for Aug. 22 at the local Civic Center station. This follows a protest at the same station held on Monday, which caused BART and police to shut down four stations for several hours.

Christine O'Donnell is another hot topic after the former Delaware U.S. Senate candidate stormed off the set of

CNN's

"Piers Morgan Tonight" on Wednesday in the middle of an interview.

Morgan's questions about O'Donnell's views on gay marriage prompted the former Tea Party candidate to rip her microphone off and walk out, but not before calling the host "rude." Since her walkout, O'Donnell has insisted it was not the gay marriage question that pushed her to exit the studio mid-show, but what she called Morgan's "inappropriate line of questions" and the fact that she had somewhere else to be. She said she was late for a Republican Women's event being covered by

TheStreet Recommends

C-Span

at the time. O'Donnell was on the show to promote her new book,

Troublemaker

, which was released on Tuesday.

Bernard Madoff is trending after a significant ruling was made by a federal appeals court that affects investors in Madoff's infamous Ponzi scheme.

In the court ruling on Tuesday, the trustee liquidating Madoff's former firm had his method of determining which investors in the Ponzi scheme can recover losses affirmed.

It was also revealed this week that Madoff's wife, Ruth Madoff, is divorcing her husband after 52 years of marriage in hopes of reconciling with their son Andrew. The couple's only other son, Mark, committed suicide in December. Ruth has reportedly not seen her husband, who is currently serving a 150-year sentence in federal prison, since the suicide.

The chatter on Main Street (a.k.a. Google, Yahoo! and other search sites) is always of interest to investors on Wall Street. Thus, each day, TheStreet compiles the stories that are trending on the Web, and highlights the news that could make stocks move.

-- Written by Brittany Umar

.

Brittany joined TheStreet.com TV in November 2006 after completing a degree in Journalism and Media Studies at Rutgers College. Previously, Brittany interned at the local ABC affiliate in New York City WABC-TV 7 where she helped research and produce On Your Side, a popular consumer advocacy segment.