By Brendan Sasso - 08/18/11 02:12 PM EDT
Hackers leak information from another website affiliated with the San Francisco subway system.
Websites including Hulu and MSN have been tracking users' online activities with new "supercookies."
AT&T is reducing its number of text-messaging plans.
GroupOn is running low on cash.
Investors are closely watching Hewlett-Packard, which reports its quarterly earnings Thursday.