Many clients purchase these info products to bone up on basic legal facts before they engage Nina directly.

FORBES: Legal Tools For Entrepreneurs

Yahoo wants to prove the influence by comparing different ads in similar demographics, and comparing data from a server address, a zip code, and credit card info from a purchase.

FORBES: Yahoo, Kardashian & the Spectrum of Engagement

Now readers could see details of fashions being worn in the spreads, get pricing info, and click through to make the purchase.

FORBES: Shopping via TV