UOCraft.com
Tools for merchants, crafters, gardeners, tamers – Ultima Online

Pricing your goods can be difficult. While prices vary from shard to shard, and even from day to day at times, these guides can help you to set a baseline for pricing items. Sites like FindUO.com and SearchUO.com make it easy to search for real-time prices as well. At the time of this writing, those sites cover primarily Luna-based vendors (which often tend to be overpriced), but the information can still be useful in setting your own baseline prices.

Smithy BOD Price Guide

Bulk Resources (leather, ingots, etc)

Smithy Armor Price Calculator

Magic Armor Price Guide