Blogs are great for those who like to write and wonderful for those who like to read, but what about people who don't like to do either? They are expressing themselves through photoblogs, Web sites that are part visual diary, part photo gallery, where in recent years anyone with a digital camera and Internet connection can take part. Many sites have made it easier than ever to share photographs, including Fotolog.net and Flickr.com, which was recently bought by Yahoo. Among the most interesting photoblogs to peruse are group oriented, where many people post pictures, all of them around a central...