Rather than taking big bucks selling their first baby pics to a tabloid, Jay-Z and Beyonce posted the first images of their baby Blue Ivy Carter on Tumblr last night. "We welcome you to share in our joy," says a message alongside the photos. "Thank you for respecting our privacy during this beautiful time in our lives." Baby pics of Blue Ivy could have fetched upward of $500,000, predicted the USA Today. (More Blue Ivy Carter stories.)