here is a excerpt from the article:
The tougher test will be turning a profit. Zemanta has mapped out two ways to make money, but neither is yet proven. The first involves sponsored links, similar to the ones that have made billions of dollars for Google. Within a few months, when bloggers use Zemanta to spiff up their postings with related content, the tool also will suggest paid links pertinent to the subject matter.

Zemanta will get a referral fee from the advertiser every time authors places one of these links on their blogs. Unfortunately, there’s no financial upside for the blogger — for instance, getting a small cut from the advertiser if a reader clicks a paid link. But Spetic argues that related links can make blog postings more useful and pertinent to readers, even if they’re sponsored.

Commercial Links?

The second planned source of revenue, on the other hand, does afford bloggers a way to make some money through so-called associate referrals. If bloggers include links in their postings to products or services offered by online retailers — and if readers follow the links and buy something — the merchant will pay a finder’s fee to Zemanta and the blogger.

The company already has inked one such deal with Amazon, whose “associates” program pays between 4% and 15% of a product’s purchase price for referrals. In February, Zemanta opened a two-person New York sales office to persuade more such merchants to sign up.

Spetic is conscious that some bloggers won’t want to add any commercial links at all to their sites. And he wants to ensure that authors aren’t flooded with suggestions for links that aren’t appropriate. But he’s confident enough of Zemanta’s business model that he predicts the company will break even by the end of 2010. Current revenues and losses aren’t disclosed.