These sites acted as a host for profile sharing and social exchanges.

This site acts as the "front door" to the government's Open Standards Process.

The site acts as a link between two natural elements: hill and water.

The site, she said, "acts as one collection ground for all complaints and violations."

Networking sites acts as a medium for expression and discourse about issues in specific user communities.

This site now also acts as the easyGroup main portal.

Some sites, like TicketsNow.com, act as clearinghouses for other brokers.

During the summer the site acts as a training excavation for young archaeologists.

In some cases, the site acts as the modern-day equivalent of a rumor mill.

The goal is to make sites act something like databases.