Dangerous Terms: A User’s Guide to EULAs
From The Electronics Freedom Foundation: They’re called End User License Agreements, or EULAs. Sometimes referred to as “shrinkwrap” or “click-through” agreements, they are efforts to bind consumers legally to a number of strict terms – and yet you never sign your name. Frequently, you aren’t even able to see a EULA until after you’ve purchased the item it covers. Yet you are bound by its terms.
EFF: Dangerous Terms: A User’s Guide to EULAs
Reading these things is enough to give a person a headache.