A friend of mine, Devin, recently asked me about some tools that could be used to monitor SharePoint (performance). I pointed him to two resources that I try to keep updated:
These are mostly free resources, tools, solution files, etc. that can be deployed in your environment to monitor SharePoint performance and assist with troubleshooting and managing a small SharePoint farm. There are many more tools, many that are better but at a small cost. My favorite is the suite of tools available from Quest Software (link).
Another excellent resource to find tools like this is SharePointReviews (link) and twitter (@SPReviews). This site, run by Mike Ferrara (@mikecferrara), allows you to search by category, and you can see ratings and user reviews from people who have actually used the products.
Know of more free admins tools? Leave a comment and Iâ€™ll update my links.