domain Yummyarticles.com + Site

[Tomi-gwc]

Hi, looking for a valuation and future potential valuation for my domains + website. I own the following:

www.yummyarticles.com
www.yummyarticles.net
www.yummyarticles.info
www.yummyarticles.org

The website (currently only on the .com) is http://yummyarticles.com
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Yummy Articles returns 500k results in google. Articles is a strong important keyword relating to the site content. Yummy is a nice, friendly, fun and welcoming adjective.
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If I post new articles daily and keep it updated, advertise etc, do you think this idea has potential and what could my site be worth in say 2 years?

Thanks a lot
James