Want to know how to belch?

It's one of the dumber questions that's posted on Demand Media's content sites, but it's not as crazy as it seems. The Santa Monica-based company uses algorithms that identify topics with high ad potential, based on search engine queries. That means folks really want to know the answer to this sort of question. Daily Finance columnist Jeff Bercovici spotted some notable examples:

--How to Calculate Age from Birthdate
Your penny's worth of insight: "Write down the current year or enter it into a calculator. Subtract the person's birth year from the current year. If the birth date has already occurred in the current year, you are finished."

--How to Buy Canadian Molson
Your penny's worth: "Bars and restaurants usually have a selection of beers, both on tap and in bottles. These places may have Molson Canadian for sale, but it is always a good idea to call to make sure."

--How to Buy Condoms That Fit
Your penny's worth: "Purchase a variety of condoms in small quantities. Many condom companies sell condoms in one- or three-pack increments. Try on each condom until you find one that fits correctly. Follow the instructions to make sure you are putting the condom on correctly."

--How to Belch
Your penny's worth: "[B]elching occurs when air and digestive gasses fill the stomach up to capacity and have to escape up and out through the mouth. Attempting to hold in a belch can cause some serious gastrointestinal discomfort." (Did you find this article a little too helpful? See also: How to Stop Belching.)

As you might know, Demand recently filed for an initial public offering. The company hasn't made money in its four years of existence, but the losses are shrinking, from $14 million in the first six months of 2009 to $6 million in the first six months of 2010. Demand wants to raise as much as $125 million.