Directories that are maintained by proffesinally by experienced and skill editors can be a good source of building incoming link. There are coming out many directories every day but not all are good for SERPs. I would recommend you consider to submit to directories that have well organized category structures, have sites listed according to topics.
I have recently come out to know some directories you may consider to submit there , they are accepting sites for free now , no link back required.
http://www.awm-insurance.co.uk
http://www.plumbing-city.co.uk
http://www.small-business-search.co.uk
http://www.a2b-finance.co.uk
http://www.a1-business-search.co.uk
I have submitted some of my sites their , I have found they review fast , seems to me they are very active.
You may try !!!
