Trough of Disillusionment

Numerous discussions exist on the value of web 2.0 and its implications for business and networking. Many of these technologies start as great ideas but fail to provide business value. Are companies willing to spend a lot of time and money implementing cool or fun functionality? A valid business case requires associating value to the intangible benefits. Sometimes this type of speculation can be difficult for companies to digest.
I use applicaitons like LinkedIn and may even have a Facebook site. Recently I signed up for Second Life. This is a concept I find challenging as many people have a difficult time managing their first life. Anyway, I signed up to find out what Second Life is all about and to identify some business value. It only took 5 minutes before someone asked me for sex. Shortly after someone wanted to start an arguement just because I was a newbie. While I do see some value in communications and collaboration the tangible benefits are harder to grasp.
Warning: this is a politically incorrect zone. As I continue to explore the web 2.0 concepts I will post updates.