ManyCam Has a watermark, but is very good at handling audio and can add a virtual microphone to your other programs while it's running.
Yawcam A free software that can sense movement and record only when something is going on. Great for security or nature watching.
■ VIDEO EDITORS
Windows Essentials (Windows Movie Maker) Windows Movie Maker used to be included and with Windows, but it is not in Windows 10 and is not being updated by Microsoft. You can still download and use it, though, and it can cover most of your basic video editing needs.