I found a free ultima online shard list. These are considered the top 100 ultima shards. I will list some for you. This list is as follows: Paradise Found, UOGamers: Hybrid, Sorcerors Quest: Ancient Caeria, Neverlands Shard, Imagine Nation: Xtreme, Untold, ABC Ultima Online, Sylvan Heart, Champion of Virtues, Oblivion Shard, Medieval Dreams, Adjournment To Antiquity, Allure of the Unknown,
. Cherished Kingdom, Wendelwelt, Equinox, Burstfire UO, Age of Virtues, Berk's World, Zulu Hotel and Hybrid. You can find more information here: http://www.xtremetop100.com/ultima-online