www.livewired.org is a general directory that has been running for a couple of months, has got a PR of 2 and currently gets over 2000 visits a month which is steadily increasing. I have got various banner spots available at the top of each catagory (see banner ad on any catagory page). All the top level catagories such as Business, Computers, Games etc (basically the ones that appear on the homepage) are going for a one off fee of $5 and the rest are going at $2 a pop. Also available is the home page spot at $20, Add URL spot has already been taken.
Please email advertise(at)livewired.org for instructions, stats available on request