Since online video is the only advertising segment showing any real health these days, NBC.com is giving that area a little more concentration lately. It hopes to woo more sponsors to its site, especially as the network upfront season approaches, with a few new ad options for marketers and agencies.

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—A little something for everyone: Advertisers will have the choice of six different placements for their video sponsorship. Among NBC.com’s new offerings are the pushdown, which lets users click to expand; the push-back, which begins as a 300x50 rollover and can also be enlarged to 300x250 with a user’s click; the homepage framing rail ad; a photo slide show unit; and pop-out ad player. And for some light targeting, there’s the “choose an ad,” which will showcase an array of different product lines from one advertiser. The user can select which specific ad would be most interesting—or least annoying—to see during a long-form episode. That last unit is part of NBC.com’s gamble on full-episodes, as it has added a long-form widget to its existing short clips player. More after the jump