Conducting a proper tree inventory is a vital skill for all professionals in arboriculture.  Political, social, and financial issues are major considerations when assessing the impact of any individual tree.  Informing the general public of risks associated with each tree in the public realm is an important part of management in tree care including bracing and cabling, pruning, and removals.  Through collaboration between research institutes, tree owners, and arborists in the Czech Republic the web portal, CheckTrees.com has been created.  CheckTrees.com is an intuitive site allowing exchange of information between all parties involved in the fate of public trees and consists of several modules covering prescribed tree work, tree valuation, inventory of pest issues (fungi, insects, etc.), cabling/bracing inventory and management and offers the opportunity to record all work prescribed as well as completed for the history of the tree.  This presentation will introduce attendees to this important online tool that can assist them in efficient and accurate inventory management including data entry from the field and use of satellite imagery for accurate mapping.