Facebook CEO Mark Zuckerberg stresses that Instagram will stay independent, but his reassuring words are doing little to stop people from thinking of the formerly indie app as a sellout.

For those with a propensity toward paranoia, the Facebooking of Instagram raises questions about what Facebook could do with their catalog of images once it gets its paws on them.

* Will Facebook run software against them, use images to link them to other people without consent, and share images with businesses?

And what about user data?

* Will Facebook snarf up all the information you've shared about yourself and friends with Instagram? * Will Facebook start geo-tagging Instagram images automatically--something Instagram doesn't do?