With the school year beginning this week, new Hamilton-Wenham Regional High School principal Eric Tracy has increased the number of entries he is making to his blog and Twitter accounts, where he posts school, community, and education-related articles and videos. “It’s just to get people thinking,” said Tracy, who formerly worked in the Wilmington schools. “I want to get people thinking about what’s happening in our school. This is a portal for them to see what’s going on.” His blog can be found at www.hwgenerals.wordpress.com, and he is on Twitter @etracyhwhs. Freshmen are scheduled to report on Tuesday.