www.BiggerPockets.com– Real Estate Forum
www.PropertyRadar.com– Property Information
www.CountyRecordsResearch.com – Property Information
www.LinkedIn.com– Professional Social Network
www.Meetup.com – Social Meetup Listings
www.MailChimp.com – Free mass e-mailer
www.ChicagoTitleConnection.com– Free information, research and documentation
www.RehabCalc.com – Flip Calculator