Times like this, I wish I could down-vote.

GoDaddy is popular, but it's a terrible service, has underhanded billing, foists misfeatures on unaware domain purchasers, and uses sexist advertising.

http://nodaddy.com/#horror

I recommend Gandi.net (upvoted the previous submission below).

Price is not the only consideration -- your time is worth something, and the practices of your business partner mean something.

Seconding namecheap. They usually have coupons as well.

3rd recommendation for NameCheap here. I've used them for 4 years, never had a single problem with my domain portfolio. They are 2nd to no one. The bonus is that NC offers their excellent services at the cheapest prices... do a google search for their monthly coupon.

4th recommendation for namecheap. Easy management, no adds or clutter when purchasing, and as the name sugests, cheap.

another recommendation. I have 300+ domains with them. very good control panel, esp for bulk.

again, I love namecheap. All domains are with them

I've been using them for well over a decade. No nonsense, low prices, interface miles better than GoDaddy.

Yet another NameCheap recommendation. Pretty awesome, and a usable -- if ugly -- UI.

+1 Love NameCheap, best I've used.

Their DNS servers is terrible. I've had problems two times over the last year.

A very important reason why I will continue to use namecheap... when a domain of mine expired, it cost me nothing to recover it via namecheap. I had a similar experience with a domain I had registered with godaddy expiring and it cost me $90 for the same recovery of a domain name. I transferred my remaining domains that I had on godaddy to namecheap and haven't looked back.

Similarly, I had some domains which had expired for 2 days, and Namecheap let me renew them at no charge. I am pretty sure at GoDaddy the same thing would have cost at least $10 extra(wouldn't surprise if it is actually $90).

On the other hand, GoDaddy renewals are roughly $3 cheaper than Namecheap, because many GoDaddy coupons work for renewals, but I can never find good coupons for Namecheap renewals.

I've found that if you have a reliable third-party DNS service with a good interface, using godaddy just for registrations isn't that painful. You get to avoid the worst parts of the godaddy interface -- and just need to deal with their annoying upsell attempts each time you renew.

I use godaddy to register my domains, and I use the DNS management I get with my VPS provider (slicehost). I have no complaints.

NameCheap looks interesting but do they have an "About Us" section anywhere on their site?

GoDaddy just increased their prices. I tried to buy a domain a few days ago and it was now $14. My coupons from referral websites no longer work.

I suspect they are increasing revenue as they prepare to sell the company.