[thelist] OT: companies that provide people for user tests

hi,
I need addresses, sites, numbers of companies that can provide people for 
usability tests we're going to do. We're in London.
I'll make an article about it afterwards, now I'm just looking.
Thanks for any help!
Peter
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'You can see a lot by observing.'
London 0771 855 17 46  ||  peter@poorbuthappy.com
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