Registration for Cedar Grove Baseball continues this week with a March 3 deadline for discounted fees. The league, serving the youth of Dorchester for over six decades, has a new website that allows for registration online: cedargrovebaseball.com  The league is also hosting an in-person sign-up session on Sat. March 1 from 9:30 a.m. to 3 p.m. at the Richard J Murphy School/Leahy-Halloran Community Center at One Worrell Street. Children ages 5-15 can play in Cedar Grove Baseball. The league’s t-ball division includes kids ages 5-7 (as of April 30). T-ball games are played at Dorchester Park.