38. The computer program product for building a user profile of claim 31 , further comprising instructions for assigning, with a computing device, a value index to the user, wherein the value index is based on the user profile of the user and a user profile of at least one other user, and wherein the value index assigned to the user dynamically changes based upon subsequent user activity.
38. The computer program product for building a user profile of claim 31 , further comprising instructions for assigning, with a computing device, a value index to the user, wherein the value index is based on the user profile of the user and a user profile of at least one other user, and wherein the value index assigned to the user dynamically changes based upon subsequent user activity. 44. The computer program product for building a user profile of claim 38 , wherein the subsequent user activity includes at least one of sharing the user's interests, clicking on a newsletter, participating in a discussion, reading or writing a blog, downloading a white paper, purchasing a product or a service, reviewing a product or service, sharing a document, posting to a social network, sending an email, and disclosing information about the user.