20. The network-based computer system of claim 11 , wherein the one or more servers are configured to enable users that are not spammers to publish the content at the share sites and to send emails from the share sites.
11. A network-based computer system for facilitating share sites, comprising: one or more servers comprising computer processors configured to receive registrations from users to set up share sites and to become owners of the share sites, to enable the users to send emails to invite people to become members of their respective share sites, and to receive uploads of at least one image or video clip from the users, wherein the one or more servers are configured to store one or more spam detection rules in a spam intelligence module and to detect potential spam emails among the emails sent by the users based on the one or more spam detection rules, wherein the one or more servers are configured to store one or more false alarm reduction rules in the spam intelligence module, to automatically detect behaviors of one or more senders of the potential spam emails at the share-site, and to identify false positive emails in the potential spam emails based on the one or more false alarm reduction rules and the behaviors of the one or more senders of the potential spam emails at the share-site, which comprises at least determining if the one or more senders of the potential spam emails have uploaded at least one image or video clip to the network-based computer system, wherein the false positive emails are removed from the potential spam emails to produce a list of verified spam emails, wherein the one or more servers are configured to identify a first sender of the list of verified spam emails as a spammer and to prohibit the spammer from sending emails from one or more share sites owned by the spammer.