New York, NY May 19, 2008 -- PropertyShark.com, the premier real estate data site, today announced the launch of MyDealBook.com, a real estate professional networking company, operating at the domain: www.mydealbook.com.

"We've been researching social networking for some time, looking for a solution to address the cross-industry marketing needs of real estate professionals in a slower market," commented former chief executive officer of PropertyShark.com, Ryan Slack, who has stepped down from his role as CEO to lead the new company.

"There are a handful of sites, such as Zillow, Trulia and ActiveRain, that address the needs of residential real estate agents and consumers through blogs and forums, but no one yet is providing a full set of professional networking features or creating tools for the rest of the market, which includes commercial, industrial, retail and office space segments, as well as all of the other areas of residential real estate, such as development, investment, finance, appraisal, title, planning, construction, education and government," elaborated Slack.

Bill Staniford, the new CEO of PropertyShark.com added, "By spinning this new site out of PropertyShark, we are able to facilitate the creation of the single largest real estate professional network overnight. Every one of PropertyShark's 330,000-plus professionals qualifies immediately for membership privileges on MyDealBook.com."

Explaining the reasons for the spin out, Matthew Haines, founder and Chairman of PropertyShark.com explained, "Our mission at PropertyShark.com is to provide professionals with the most timely, accurate, and detailed parcel-level property data and the tools to make the most of that information; our vision is to achieve this on a nationwide basis. While the latent demand for a real estate professional networking platform is clearly strong, it is a fundamentally different business. Working with MyDealBook.com is the best way to meet more of the needs of our users."

About PropertyShark
With over 20 million properties in twenty major markets, PropertyShark.com provides real estate professionals and investors with data and tools on all aspects of property, including building details, ownership information, recent sales prices, property values and comparable sales, sophisticated maps, listings, foreclosures and pre-foreclosures, mailing lists, photos, and more, available directly from the web. PropertyShark.com strives to level the playing field by offering independent real estate firms, investors, and savvy consumers the information transparency essential to evaluate real estate and make informed decisions. For more information go to: www.propertyshark.com.

About MyDealBook.com
With over 330,000 professional members, MyDealBook.com is the only professional networking site for the entire real estate ecosystem, including architects, developers, investors, appraisers, publicists, attorneys, lenders and 33 other distinct professions within the real estate industry. Members manage their deals and projects, form groups, sign up for events and expand their professional networks, all with the goal in mind of doing more and better business. MyDealBook.com addresses the needs of all professional real estate participants, especially in a down market, by providing opportunities for self-marketing, deal advertisement, and locating investors/buyers.

Originally founded in May of 2007 by Mark Schacknies, a real estate developer, and Nima Negahban, MyDealBook.com was acquired in March 2008 by MDB LLC, a firm run by MyDealBook.com CEO Ryan Slack, who left PropertyShark.com to lead the new company. MDB LLC is a marketing partner of PropertyShark.com and leverages the existing user base of PropertyShark.com. MyDealBook.com is headquartered in New York City.