(Information on the Ohio State University bomb threat as well as Medicare concerns added to today's Hot Trends article.)

NEW YORK (

TheStreet

) -- "Ohio State bomb threat" is a heavily searched topic today following news that parts of the Ohio State University campus were evacuated due to an e-mailed bomb threat.

The FBI received a threatening e-mail on Tuesday morning which led to the school evacuating four academic buildings, including the William Oxley Thompson Memorial Library.

The source of the e-mail was not revealed. In their search officials did not find anything out of the ordinary, but have cautioned students and faculty to stay clear of the targeted buildings until 5 P.M. today.

"Medicare" is a popular search today following reports that the Medicare reimbursement rate for doctors will be cut by 23% on Dec. 1 if Congress does not act before the temporary legislation's deadline.

Also, the annual open enrollment period is under way. On Nov. 15, Medicare's annual open enrollment period began for seniors enrolled in Medicare Part D prescription drug plans. The period will continue through Dec. 31.

During this time, seniors in the federal health insurance program can make changes to their coverage. Any changes will take effect Jan. 1, 2011.

"Prince William engagement" is a popular search topic today after Britain's royal family announced that William is engaged to long-time girlfriend Kate Middleton. The couple is to be married next year.

William and Middleton, both 28, were engaged in October while on vacation in Kenya. The two met as students at Saint Andrews University in Scotland in 2001. They were separated briefly in 2007.

William is the eldest son to Prince Charles and the late Princess Diana. Charles is the heir to the throne that Queen Elizabeth II has been in for 57 years.

"Google raise" is a heavily searched topic today following news that

Google

(GOOG) - Get Report

plans to increase its employees' salaries by 10%.

"Let me say, on behalf of everyone on the management team, that we believe we have the best employees in the world," Google CEO Eric Schmidt said in a memo to staff obtained by the

Business Insider

. "It's why I'm excited to come to work every day, and I'm sure you feel the same way. We want to make sure that you feel rewarded for your hard work, and we want to continue to attract the best people to Google."

The raises will be effective starting January 1, 2011, and each employee will receive a $1,000 bonus. Also, Google's top four executives will receive a 30% raise and possibly a 250% bonus next year, according to a Nov. 8 filing with the Securities and Exchange Commission.

"Retirement" is a heavily searched word today after French President Nicolas Sarkozy signed a new law last week that raised the country's minimum retirement age to 62 from 60.

Sarkozy's pension-system reform faced strong criticism and protest from millions of workers across the country.

>> More Staff Rely on Work Retirement Plans

Also under the new law, retirees are not eligible for full pension payments until age 67 instead of 65, for workers who have not completed 41 years of contributions.

"iPad update" is a hot search topic today as iPad owners anticipate the release of an operating system update from

Apple

(AAPL) - Get Report

.

In September, Apple announced that the new

iOS 4.2 for the iPad, iPhone, and iPod touch

would be available in November, but did not specify a day.

The improved system will have more than 100 new features, including multitasking, folders and printing. It will be the first system update available for the iPad since April.

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

-- Written by Theresa McCabe in Boston.

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