I came on your site and I watched my data use go from 2.4 gb to 2.5 gb and I have not been on any other site since 6 am this morning. So, why is it that I used 100 mb of data just checking my data usage on YOUR SITE ?
Usage is reported in 100 MB blocks. Maybe you had used 2.499 GB and logging onto the site used 1 MB and put you over. FWIW, I have seen my computer use 200 MB when I turned it on without my doing anything on the Internet due to background processes checking for updates, updating the virus protection, etc. I just checked my Internet usage app and I see there are 51 programs on my computer that access the Internet without me ever launching a web browser.