NEW YORK (

TheStreet

) -- Popular searches on the Internet include

Pfizer

(PFE) - Get Report

on news the pharmaceutical company is recalling 1 million packets of birth control as they may not contain enough contraceptive to work.

The company said a packaging error could leave women with an inadequate dose of the drug and increase their risk of pregnancy. Affected pills include Lo/Ovral-28 tablets, generic Norgestrel and Ethinyl Estradiol with expiration dates ranging between July 31, 2013 and March 31, 2014.

Pfizer said mechanical and visual inspection failures on the packaging line prompted some packets to have too many active tablets, while others had too few. The company added that the problem is not related to safety but will increase risk of unplanned pregnancy, and has been corrected.

McDonald's

(MCD) - Get Report

is another popular search as the fast food chain announced it is no longer using the controversial beef additive known as "pink slime."

Chef Jamie Oliver, host of "Jamie's Oliver's Food Revolution" popularized the term pink slime, which refers to spare fatty beef trimmings that are treated with ammonium hydroxide to kill bacteria. Though the scrap meat would be otherwise inedible, the process of soaking it in ammonium hydroxide and grinding it into a pink meat paste is still approved by the Department of Agriculture. The process has come under fire recently, with Oliver's anti-pink slime campaign, a recent documentary and newspaper investigations into the process.

McDonald's said the decision wasn't related to any particular event.

Taco Bell

and

Burger King

also reportedly stopped using the process in their burgers earlier this month.

Facebook

is a hot topic as the markets await to see whether the social networking site files for an initial public offering Wednesday.

It is expected that Facebook will file documents for a $5 billion IPO, half the amount that was originally speculated. Facebook could have a valuation of $75 billion to $100 billion, which would make it one of the country's biggest IPOs in history. The company has reportedly chosen

Morgan Stanley

(MS) - Get Report

to lead the deal, as well as four other bookrunners including

Goldman Sachs

(GS) - Get Report

,

Bank of America

(BAC) - Get Report

Merrill Lynch,

Barclays Capital

(BCS) - Get Report

and

JP Morgan Chase

(JPM) - Get Report

.

Morgan Stanley has previously aided in the IPOs of Internet companies

Groupon

(GRPN) - Get Report

and

Zynga

(ZNGA) - Get Report

.

It's expected that final pricing for the Facebook IPO wouldn't be set for several months, giving time for the IPO to be increased.

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.