As a licensing professional, you have to market the technology. You have to find those parties that would benefit from licensing the technology, or those parties that might be infringing. A well drafted letter to either of the parties detailing the aspects of the technology and how it relates to their efforts will produce some potential licensing situations. Technical Conferences are good for disseminating your technology to the individuals most interested. Most fields have organizations and committees that can be joined, and almost all the technical conferences are posted on webpages.
Membership provides access to the membership list, which can be used as a directed mailing list.
You should also use the internet search engines to find other companies in the field. Next, you should use the various news services and providers. The search can be done on the multitude of free sites, or can be farmed out to commercial services. These services, such as Nerac, can provide a lot of information in a summarized format. Additionally, most of the news sites and search engines offer some form of clipping service than can be used to set up a user profile.