Paid Inclusion is a services which allows your website to be included in certain search engines, online directories, and web portals. You have to pay to be included into some of the biggest online services.
With Yahoo Paid Inclusion it is almost like a PPC campaign but it shows up in the natural or organic search results pages. Certain industries can only be indexed if they use the Paid Inclusion services. Usually these industries involve the mortgage and financial sectors.
Paid inclusion's biggest benefit is that you are guaranteed to be in the particular search engine's index, which opens up the possibility for a tremendous amount of traffic. A brand new website that needs exposure quickly can use Paid Inclusion to gain search engine traffic, and online traffic form web portals that have the Paid Inclusion model. Usually an annual subscription fee for each page is necessary.
The biggest advantage of paid inclusion is guaranteed search engine indexing of your WHOLE website. This is extremely important for websites that are too big to consider individually search engine optimizing every single page on their website and don't want or cannot afford to wait to get indexed naturally by search engines. Paid inclusion also gives you on the preferred client list, which allows you to directly communicate with search engines on how the funnel traffic to your website.