Is there a free directory enquiries online ?

[dugless]

if so where..

[Kinky]

for individuals or business?

For business you can try www.yell.co.uk

For individuals .... pass. I used to use 192.com - but that's fee-based now (I think).

[Ian_H]

err! www.bt.com

[Slikk]

www.118500.com

kim

[russ]

yep bt . com you can get up to 10 free dq numbers a day

[bluespanner]

Slikk- i know a guy called kim with a TVR, were you clay pigeon shooting at christmas at Toms?

[fcukruss]

www.b4usearch.com

[D-Angle]

Handy link this, might not be exactly what you're after but useful nonetheless.
www.thephonebook.bt.com/publisha.content/en/find/residential/residential_numbers.publisha