I have ordered from most of these sources and have found them to have excellent bulbs and good customer service.When there is a problem they fix it.

Royal Colors..........................................................http://royalcolors.com

Willow Creek Gardens.........................................http://willowcreekgardens.com

Easy to Grow Bulbs..............................................http://www.easytogrowbulbs.com/

Amaryllis Bulb Company.....................................http://www.amaryllis.com/

John Sheepers.....................................................http://www.johnscheepers.com/

Telos Rare Bulbs.................................................http://telosrarebulbs.com/

...................................................................................................................................................

Trusted Ebay sellers

Liz Fichtl selling as impower56

Maria Mancini selling as greentreasures

JT Sessions selling as countrygdn

Nestor White selling as bulbsnmore


These are companies I have used and recommend.There are other good companies out there and I plan to order from some of them this fall.Companies can also be added at the request of members if the company has a good reputation.There are also companies that ship quality bulbs but charge outrageous "shipping and handling"charges.Those will not be added to the recommended list.
NOTE to those ordering amaryllis for the first time;order early to get your choices but be aware that bulbs aren't usually shipped until late September or early October.