Their enforceability depends on how they are presented to the end user. On the extreme, if you are forced to scroll it, click a check box, click continue (with

Their enforceability depends on how they are presented to the end user. On the extreme, if you are forced to scroll it, click a check box, click continue (with a cancel/no option as well), then it is almost certainly enforceable to the extent it would be if it were on physical paper (at least in the US).