GoDaddy currently has a special rate of $1.99 for any domain (.com, .us, .mobi, .biz, .net, or .me) but you need to read the fine print carefully:

The special rate of $1.99 per domain name per year only lasts for the first year. After that, the price goes back to $10.69 per domain per year [...]

Everyone wants to find low price domain name registration but with all of the companies out there claiming to have cheap domain names, it’s hard to find the real domain name deals.  
So, how much should you pay for a .com domain name? We looked at the top 20 domain name registrars listed on Wikipedia [...]

Best Domain Name Price on 1&1 Internet: $6.99 .com domain name (for the first year only. Price will return to $8.99 per domain name per year.) .org, .net, .info, .us domain names are also on sale for $6.99 for the first year. .biz domain name are $3.99 for the first year as well.  (Price [...]

UPDATE (March 2009): A year later and find out why we still love BlueHost and renewed our webhosting plan with them.
 

Get $50 credit with Google AdWords, $50 credit with Yahoo Search Marketing, and $75 credit with MSN AdCenter when you sign up with BlueHost.

BlueHost. We read a lot of reviews online. We looked at a lot [...]

How do you register domain names for your website? No problem. You can register domain names and have your website set up in three easy steps:

The first and hardest part when you want to register domain names is to find a good domain name that is still available. (This can take days.)
The second step is [...]