Solo ads can be very effective....I use solo ads alot.
To be honest thats my favorite marketing method.
It was mentioned in the previous posts about Charlie Page
Directory Of Ezines. You can find dozens of good sources
to use.
If you find a couple of solo ad sources you want to use.
You may want to contact the owner by email or phone.
See how many times they send ads out per month.(If they multiple ads out per day...you may want to avoid them
most likely there list isn't really reponsive.)
You can also sign up to there newsletter and see how many times
they send there ads out.
If you find an source that working for you....think about prepaying
for a couple of ads in advance. Doing this will allow you to get major
discounts and have your ads go out Once, Twice, Three times a month
on autopilot.If you want to learn more about Solo Ads the best person to go see is
Daegan " Never Calling A Lead" Smith. When it comes to knowledge on
solo ads there is nobody better than Daegan.
You can checkout his website
http://www.MaximumLeverage.comDaegan has a couple webinars just about solo ads.