dealextreme is my favourite in terms of I will go there first to look for something and then use it as a reference point for looking elsewhere.
I love the freeshipping so that it isn't a case of spending hours looking, finding a great product at a great price, registering, putting it in your trolley then getting postage and it becomes ridiculously expensive
Though I note shipping can take up to 5-6 weeks.
I note that aliexpress has dropped the 'free postage' tab for searching.
what is your favourite site?
please indicate what it sells and whether it is free postage and its negatvies
Dealextreme
Sells=Too hard to explain, basically random everythings
Free Postage=Yes
Positives=Free shipping, cheap prices, there is a bulk-sister site, reviews for each product, referral system, you get DX points
Negatives=Slow shipping, DX point isn't that easy to use(they should have a better system @ checkout)