We all know Yahoo Directory is one of the most trusted and valuable directories there are on the internet to submit your website to. The search engines have all in one way or the other recommended submitting to the Yahoo Directory so therefore when you spend the $299 to submit to that directory you always wonder in the back of your head if you are a startup or self-funded venture “is that really worth it?”.
We’ll today I can tell you yes it is not only from the link juice perspective but the fact that you can get a yahoo directory listing buy one get one free. So you can get two listings for the price of one! Now, there are a few guidelines you have to follow with this and not every website will fit these guidelines so pay attention.
Step 1: First lets go to the Yahoo Directory homepage:

Notice there where the arrow is pointing in the top right of the page, you will want to click the ‘Suggest a Site” link.
Step 2: Next page, if you already have a listing follow step 3, if you don’t have a listing continue this step:

First you will need to have an existing listing with Yahoo Directory for atleast two weeks to be elgible for the extra listing. So if you are on this step that means you do not. So go ahead and click the Get Started link in the middle to proceed with your order and remember to not keyword stuff or spam the directory submission there are a team of human editors who will reject your listing or change it to meet there gudielines.
After you have submitted your directory listing and it has been approved come back after two weeks of it being live and continue to follow at step 3.
Step 3: If you already have a listing please click the Request a Change to an Existing Listing
If you already have a listing that has been in the directory for two weeks please click the link on the left hand menu referenced “Request a Change to an Existing Listing“.
Step 4: Follow the Request Information very closely

Simply check the checkbox next to the option to “Change your existing category or request an additional category placement for your listing.”
Then simply follow the asteriked items below that to make sure your site meets the criteria. PLEASE do not abuse this, and remember to make sure you only submit to one additional directory listing that is relevant to your website.
An example of two categories for your site would be if on your website you sold Boat Rentals & Sales, but you also repaired and serviced boats.
Purchase a listing in:
http://dir.yahoo.com/Business_and_Economy/Shopping_and_Services/Outdoors/Boating/Rentals_and_Sales/
Then you should suggest that your site be listed in:
http://dir.yahoo.com/Business_and_Economy/Shopping_and_Services/Outdoors/Boating/Repairs_and_Service/
Credits to: SEO Tip a Day