Worth a read:

Just as the U.S. housing boom gave birth to such homebuyer websites as Zillow Inc. and Redfin Corp., services for rental properties are thriving following a surge in foreclosures and stiffening of mortgage standards. Membership in the National Association of Residential Property Managers has almost doubled in five years to a record 3,400 members, according to the Chesapeake, Virginia-based trade group.

“We are riding this sea change in how housing is changing in the U.S.,” said Reggie Brown, chief executive officer of All Property Management LLC, a Seattle-based Web service that sells property managers leads on homeowners who want to lease out their properties. “The only growth is rentals.”