This post is part of our feature on Money Losers of 2008. See all 20.

There's no doubt about it -- times are tough. People are struggling to find work and to pay the bills as the value of their homes and savings dwindle. The poor get poorer, and the rich get richer.

Or do they? It's all relative, of course, but world's billionaires have been taking some big hits too. We take a look at Sheldon Adelson, Kirk Kerkorian, and Lakshmi Mittal in their own separate posts, but here are some other billionaires who have lost billions this year (courtesy of Forbes and Business Sheet).

• Brothers Anil and Mukesh Ambani of India's private conglomerate Reliance lost $32.5 billion and $28.2 billion, respectively.
• Warren Buffett, the Sage of Omaha, lost $16.5 billion. Shares of Berkshire Hathaway Inc. (NYSE: BRK.A) are down about 32% since the beginning of the year.
• Microsoft (NYSE: MSFT) founders Bill Gates and Paul Allen lost $12.3 billion and $2.6 billion, respectively, while CEO Steve Balmer lost $6.5 billion. Shares of Microsoft are down 46% since the beginning of the year.
• Larry Page and Sergey Brin, cofounders of Google Inc. (NYSE: GOOG), lost $11.9 billion and $11.7 billion, respectively, and CEO Eric Schmidt lost $3.8 billion. The share price of Google has fallen 55% since the beginning of the year.
• Larry Ellison, CEO of Oracle Corp. (NASDAQ: ORCL), lost $8.2 billion. Shares of Oracle are down 21% since the beginning of the year.
• Media maven Sumner Redstone lost $7.2 billion. Shares of his private investment firm National Amusements fell 70% this year.

As we begin the trek to grandmother's house, it's worth reflecting on what we have to be thankful for. The answer? When it comes to money, most of us have a lot less than we did a year ago. But for those of you who have your health and your families to comfort you, it will cost much less to buy the gasoline to visit than it would have in July. And as you're driving to visit those families -- consider how much less you lost in the last year than the world's 10 biggest losers.

According to the web site, The Business Sheet, those unfortunate people suffered a mind-boggling $176 billion in lost stock market value in the last 12 months. It turns out that 52% of the losses were suffered by three executives based in India. Here they are:

• Anil Ambani - $32.5 billion. Ambani heads Reliance Communications that invested $500 million in Dreamworks earlier this year.
• Lakshmi Mittal - $30.5 billion. Mittal heads ArcelorMittal which has suffered from a decline in the price of steel.
• Mukesh Ambani -$28.2 billion is Anil's brother and controls Reliance Industries, a petrochemical manufacturer.

These are some other folks that make The Business Sheet's list:

• Sheldon Adelson -$30 billion. I did consulting work for Adelson about 22 years ago and he is quite a character. His Las Vegas Sands (NYSE: LVS) casino is suffering from the economic slowdown and he's had some trouble with debt.
• Warren Buffett -$13.6 billion. As I posted, Buffett's Berkshire Hathaway (NYSE: BRK.A) has had some problems this year.