Lexington schools also maintain a good site which also posts school closings and other timely information. Find Lexington schools at www.lps.lexingtonma.org
For recreational activities you will find a lot of useful links and phone numbers on the town site at
When looking at a neighborhood or a specific property you can find interesting information looking at the town assessor's map. Just enter the property address and the plot will come up along with the tax information.
I have to put in my own bias here and include a link to the Lexington United Soccer Club. Lexington has a great soccer program with more than 2,000 girls and boys of all ages enjoying the sport. The High School teams are very good and it's a great lifelong sport with several adult teams in town and even an over 60 team entered in the region's adult soccer league, the NEOTHSL, New England Over The Hill Soccer League.