What to Do With Photos Piling Up in a Phone

A large number of photo apps have cropped up that allow you to tweak pictures, add filters, tag on information about subject and location, and post them on social-networking sites, writes Roger Cheng. Note: Walt Mossberg is on vacation and will return Dec. 16.
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Voices

Entrepreneurs Wade Into the "Dead Zone"

Every spring, fertilizer runoff from the U.S. Mississippi River floods into the Gulf of Mexico, causing a massive algae bloom that leads to a giant oxygen-deprived “dead zone” where fish can’t survive.

Switching Networks for an iPhone

Walt answers readers’ questions about switching networks to buy an iPhone, how to forward an email in Gmail, and more.