Directories Paid and Free

Directories unlike search engines do not find your website using spiders(robots or bots), manual submission is required. Directory submission is useful for obtaing one way inbound links.

Common sense applies again here: the goal is to get listed in asmany directories as you can, so you get maximum exposure. Butweb directory submission can be very time consuming, soyou have to be selective to maximize your productivity. Here area few things you'll want to keep in mind:

If the price seems too high, it's probably not worth it. Ifyou have a little money to invest, it's a good idea to get intosome of the paid inclusion directories. Pick and choose fromsome of the mid-level ones, and try to diversify your presenceby picking some foreign directories, as well as some local ones.Some directories also offer special inclusion, where you pay apremium to get listed quicker. It's definitely worth it ifyou're looking to improve your traffic as quickly as possible.

Before submitting to any web directory, check to make sure thedirectory is not banned by Google. Be prepared before you start submitting. Write a fewdescriptions for your website in different lengths (50 words,100 words, 200 words), so you can just copy and paste whenyou're submitting. This is guaranteed to save you a lot of time.

If you don't want to spend a lot of time searching for,picking and choosing directories, start at this page, which provides a great list of the top search-engine-friendlydirectories. 

If you don't have a lot of time to devote to this, don't worryabout doing it all in one shot. Bookmark the link above, andtake a few minutes every day to do one or two directorysubmissions, until you make it through the list.