Best Of MetaFilter

rolls royce mayonnaise by jules:stonesoup (cc by)

Alright. I've been a high end cook/chef and I've also worked for as 'Big Mayo' a company as you can in the world. I know mayo inside and out - from making it in small batches, to mass production and sourcing, to which demographics and some indication as to 'why' those demographics buy it ...

Nanukthedog shares a generous dollop of knowledge.

Facebook Disc by dannysullivan from this article (cc by)

I place Facebook ads on behalf of my workplace and looking at the ad console has been sort of fascinating to me as an end user in explaining why I see some of the ads I do and how I can stop some of the more obnoxious ones from appearing....

Most [facebook ad targeting] is based off user submitted data (if you don't tell Facebook how old your kids are, they can't serve you ads based on it) but some of it is stuff you wouldn't expect to be used that way. It brought me up short when I realised Facebook could use my submitted location and the submitted locations of my family members to target me as somebody who was isolated from my loved ones. I never saw any ads for the Scientologists or anything, just innocuous stuff, but it still creeped me out a little.