It (The USA Local Search Network My Site) really is like joining Myspace except that you can do so much more.
I also think that it might be of interest to entrepreneurs and to people who are free lance or wanting to demonstrate their skills knowledge or accomplishments to head hunters etc.
It is the ultimate networking tool for business people.
What I really like is that it can allow me to put my entire office, materials, papers, videos, etc. online for personal use or sharing with clients, partners or associates.