Complex sentence: A site redesign in late 2005 gave members the ability to note mutual interest with a click to each other's profile, triggering an alert, as well as support for webcams and the ability to keep a list of prospects.
Split into simpler sentences: A site redesign in late 2005 gave members the ability to note mutual interest with a click to each other's profile, triggering an alert. Another update provided support for webcams and the ability to keep a list of prospects.