Collins librarians offer support for two knowledge management tools--RefWorks and Zotero. Each has its strengths and its quirks, and it's ultimately up to you to decide if or which one may work for you.
Questions to ask yourself:
The research process is just that: a process. A good researcher isn't someone that puts the right words in the search box the first time, it's someone who uses each search to improve the next one. By being aware that you'll circle back and perform tasks more than once, use more than one tool, and look at more resources than you actually use, you'll be better equipped to plan how long your research takes and pick the best sources. Remember to use the citations of a good source to find more sources, as if you were building a chain.