[billorites]

A benign and trivial example:

I'm a long-term, but infrequent, user of FaceBook. Last summer I bought a lightweight travel backpack on line.

Later, I see that purchase broadcast over FB. I must have OK'd sharing that, but don't remember doing so and normally wouldn't.

Must check my privacy settings to make sure I'm not sharing what's kept in the back of my sock drawer...

[Solar Wind]

Later, I see that purchase broadcast over FB.

Facebook has entered ecommerce.

Call centers are now linking Facebook to customers when they call in to place an order or place the order on-line. The agent can have access to your Facebook account and see what your likes and dislikes are to help you with your purchase.

We are all living in glass houses now.

[Alberta's Child]

My Facebook account is for a person of the opposite gender who is 10+ years older than I really am.

I only use it to check on other Facebook accounts. Anyone who wants to "invade my privacy" on Facebook is wasting their time.

[Chuckster]

I'm not sharing what's kept in the back of my sock drawer...

I advise you not to keep it in the sock drawer. Everyone knows that that is where most people keep them. Better to find a less obvious place and do not post it on the internet d;^)