While in the UK, poetry.co.uk is a fashion store. Poetry.com is a full-on poetry site. A bit of a lottery in fact. (Still in beta)
It describes itself thusly:
Poetry.com welcomes all amateur poets and wants to encourage your participation in the world's largest and most vibrant poetry community. We have established a system of points and badges which you'll earn for every different type of action you take. For example, you will receive points for each poem you write, each poem you review, etc.
I would be interested to know if you have tried it out. This kind of community works well for fiction writers but for the prickly beast that is the poet?
Have a go and let me know what you think...you may win a free pin.
More information here http://www.poetry.com/
Oh and btw it is under new management!