parking in Cambridge

I should have sent this earlier. 

Several people asked about the parking situation next to the IBM site in 
Cambridge. There is no visitor parking at the IBM building but there is 
one on the Cambridgeside mall a block away (I think there is an entrance 
on Cambridgeside Pl); you get a $12 (I think) flat rate when you have your 
ticket stamped at the IBM reception desk. 

Paco