There are a lot of free services online these days. But free isn't always free...
There are a lot of free services online these days. You can store pictures "in the cloud," develop documents, send email, and connect to people. And it doesn't cost you a single penny.
But free isn't always free. Many "free" services sell information about you -- your likes, hobbies, salary, family members, friends, location, profession, purchase and viewing history, and other demographics -- to advertisers to make money.
Be aware of what information you're providing online. Read websites' privacy policies and terms of use. Don't post information that could be exploited by a bad guy or that you don't want made public. Don't store unencrypted sensitive information in the cloud. You don't know with whom you're sharing the cloud!