Someone started a thread about this on Shutterstock but, having looked at the FB page, probably some people here also need to be aware.

Here is the info from the Shutterstock forum:

I just got the following message on my Linkedin page:
Hi everyone! I have a blog share free eps vector. I think it so helpful with you, you can visit and download free. And this is my fan page: https://www.facebook.com/epsvector
Started by Tina Swift, Designer at EPS Vector Blog

Here is the blog:http://eps-vector.blogspot.co.uk

Here is the Linkedin page:http://www.linkedin.com/groups/Hi-everyone-I-have-blog-121555%2ES%2E238766865?view=&gid=121555&type=member&item=238766865&trk=eml-anet_dig-b_nd-pst_ttle-cn

I have not found any of my own images but I quick Tin-Eye search shows that the images are on various stock sites and by numerous artists.

I have left a comment on the Linkedin page but some of you may want to add you own or contact Facebook, etc. if any of the images belong to you.

Owners get reporting via the copyright infringement form on Facebook (follow the report link under the image)

Facebook are usually very quick to respond

Also site is on blogger, so report to Google too

http://support.google.com/bin/request.py?&product=blogger&contact_type=lr_dmca

Her is the link to the Linkedin discussion. Those who have responded so far appear very happy at the free resource available. Perhaps a few of you could leave a comment?

http://www.linkedin.com/groups/Hi-everyone-I-have-blog-121555%2ES%2E238766865?view=&gid=121555&type=member&item=238766865

Maybe it's worth emailing some of the people who's work is there direct?