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DuckDuckGo @DuckDuckGo

If you use Facebook, here's how to discover one way your data is being used:

"74% of FB users were unaware that FB lists their personal traits & interests for advertisers on its site," says @sapna.

Don't be one of those people!

· tootbot · 1 · 1

@DuckDuckGo Twitter does also list personal traits as categories. Interest like science, technology, cooking.