The ICT and IB Physics website has a lot of information about the use of dataloggers and not a lot has happened since then. Both Pasco and Vernier are pushing their stand alone modules the Spark (Pasco) and Labquest (Vernier). I have used both but prefer to be connected directly to the computer. if we are going to ask students to analyse data with a computer then they will need one in the lab anyway so why not connect...