Currently there are a whole bunch of food web sites that are doing things like flavor matching, or other advanced food related search. I have been playing around with Yummly (www.yummly.com) and found that "taste" bars are interesting to play with if you want something like a briskit recipe on the sweeter side (http://www.yummly.com/recipes/#q=brisket&flavor.sweet.min=4&flavor.sweet.max=6).

By posting on a now Yahoo web page you now:

"By submitting Content to any Yahoo property, you automatically grant, or warrant that the owner of such Content has expressly granted, Yahoo the royalty-free, perpetual, irrevocable, non-exclusive and fully sublicensable right and license to use, reproduce, modify, adapt, publish, translate, create derivative works from, distribute, perform and display such Content (in whole or part) worldwide and/or to incorporate it in other works in any form, media, or technology now known or later developed."

Translation: If it is something you came up with: ie. a new song, and idea for a product, some type of code. Yahoo can do whatever it feels like with it, even if that means loss of income or potential income for you.
It does not mean that Yahoo is taking responceability for what you do, but it is a clause so that they can pirate anything you put on your web page.