How it works: Various technologies enable patients to exchange health information with caregivers. Patients \n\nuse the Intel Health Guide system to video conference with healthcare professionals and receive videos about diet and \n\nexercise. Patients can also attach a blood pressure cuff or other devices using a Bluetooth wireless link and relay vital \n\nsigns to a nurse. T+ Medical offers more targeted products, such as a diabetes management program that runs on a cell phone \n\nand helps patients track and report blood glucose levels. \nMore on CIO.com\nPower to the Patient: Mount Sinai Puts Medical Records Snapshot on Smart Cards\n\nWho is doing it: Several healthcare providers are testing or using these devices. Meridian Health is testing \n\nthe T+ device within its four New Jersey hospitals. It will also evaluate the Intel Health Guide to see how it compares with \n\nthe Honeywell HomMed, a similar device that it has been using for two years. A device like HomMed can reduce the number of \n\ntimes a cardiac patient has to be readmitted, from three times a year to once a year, says Sandra Elliott, Meridian's director \n\nof consumer technology and service development. \n\nGrowth potential: Hard to be sure, as some devices are still undergoing market and clinical trials. Much may \n\nalso depend on insurance providers which, Elliott notes, are starting to provide reimbursements (most patients using \nhome \n\ncare devices today are on Medicare, so hospitals are reimbursed by the government). \n\nFocusing on how visitors use your content is important, advises Cottay. "Make sure your classification is specific enough that \n\nit can drive what you want, but flexible enough that it could grow as you understand more about your content," she says.\nIn February, two months after the relaunch of HGTV.com, Cottay says visitor metrics are showing that users are spending more \n\ntime on the site. "Rate My Space" page views are up 75 percent since February 2008, making it one of the most active areas of \n\nthe site.