Mr. Know-It-All on Spam Among Friends, Blog Contests, Naked Babies

Mr. Know-It-All is a popular feature of Wired magazine and it's accompanying site that functions much like a Dear Abby column for the tech savvy. This particular segment deals with three disparate topics that we may or may not have wondered about ourselves.
Topic 1) Is mass emailing people from your address book about an event okay?
Response: That would basically be spamming. No one wants to consider the act of giving out their email address an invitation to be bombarded with shameless updates. That isn't to say that self promotion is bad but more care is needed than what a blanket message would allow for. Only target specific people that might be interested and make sure to personalize the opening to the message. And if things turn ugly be human enough to apologize.
Topic 2) Is it wrong to boost blog traffic by giving away gift cards at random?
Response: This would be more of a sweepstakes, as seen with sites like Publishers Clearing House. Because users weren't rewarded for their skill but picked at random you would be subject to the laws regarding sweepstakes of your state. Basically they usually state you need to have all that fine print regarding the contest printed on the site. Sometimes this can be as specific as posted the odds of winning and "no purchase necessary". However despite all this "The California attorney general's office couldn't identify a single case of a blogger being punished for holding a sweepstakes."
Topic 3) Is posting pictures of your naked baby on facebook like childporn?
Response: Porn would have to contain sexually explicit content and or including "lascivious exhibition" of genitalia. This doesn't really apply to baby pics. In fact while facebook didn't really approve of breastfeeding, Facebook spokesperson Simon Axten mentions that "We've carved out an exception in our policy to allow photos of infants posted by parents or other family members." Also mentioned was that Facebook, provided certain settings are enabled, can be much more private than most any other site, allowing only trusted friends to see such things.

source: http://www.wired.com/techbiz/people/magazine/17-09/st_kia