2. Speed: Video is measured in frames per second, a figure also known as the frame rate. You'll want a webcam that captures 30-plus frames per second for smooth video--though the actual smoothness of the video will depend on a number of factors, including the speed of your Internet connection.

3. Lens: Entry-level webcams typically have plastic lenses, but a webcam with a glass lens is a better choice. It's also nice to have a webcam with a manual focus ring, so you can adjust the webcam yourself.

4. Connection point: You'll come across both USB-wired webcams and wireless (Bluetooth or Wi-Fi) webcams. Of the two types, USB 2.0 is the more reliable choice, in my opinion, because you'll get a steady connection and you won't have to worry about your Wi-Fi cutting out (this is good if you're, say, recording video). You should also consider the type of stand a webcam has. If you plan to use the webcam on a thin monitor or a laptop screen, you'll want a clip-style stand. If you have a larger monitor, or if you want to put the webcam on a shelf or desk, you'll need a flat stand.

5. HD: If you wish to use your webcam just for video chatting and socializing, you don't really need an . But if you intend to do a lot of streaming or recording--you have a Stickam show, for instance, or you want to make YouTube video logs--you might consider an HD model. The "HD" label refers to webcams that capture images of 720p or better.

anywhere from $10 to $300--but if you're paying more than $30, you'd better know what you're getting.