Google Scholar is freely accessible on the Web. In addition to locating research on a topic, you can also use it to see your research impact.
To get started you'll need to create a Google account. Then you'll be able to make a profile.
Your work may be added automatically by Google Scholar, and if not, there are opportunities to search for and/or add citations. You can also add co-workers. In addition to seeing numbers and who cites your work, you'll also see your h-index and i10-index:
EPP Research Impact Guide created by Sue Collins, maintained by Julie Chen