Facbook spidering my site?

been going on for about 4 hours now

[Bewenched]

66.220.155.***
66.220.145.***

anyone else getting this? Is this ok ... we're an ecom site.

[wilderness]

I've not seen any mass crawling (an entire sites images) by facebook, rather, confirmation of specific images (likely linked from one of their active pages.)

[LifeinAsia]

Have you added a FaceBook "Like" plugin? Or has someone linked to your site in FB?