What would you do if you find out Agoda is using your photos?

I just found out Agoda, the hotel booking website is using photos from my blog for a South Korean hotel. Unlike most bloggers I don't feel so offended because I uploaded so everybody can see it. Besides those photos are not very good I don't even know why they would put those up, just iphone quality pics. But they definitely did select those hotel room and view photos. Even a hanging painting on the corridor! Some say it's surely infringement of copyright. I'm just a little blogger though… What should I do? Just let them using my photos for their specific hotel and let it viewed by thousands international travelers?

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