If you are building a site that has the potential for information that will never age and remain useful for your audience, you have the opportunity to create what is known as evergreen content. It's important to carry out extensive keyword research before planning any evergreen content for a site like this, as your site could hugely benefit from the proper usage of keywords within such content.
In the case of cost per mille/click, the publisher is not concerned about whether a visitor is a member of the audience that the advertiser tries to attract and is able to convert, because at this point the publisher has already earned his commission. This leaves the greater, and, in case of cost per mille, the full risk and loss (if the visitor cannot be converted) to the advertiser.
On behalf of Tax Executives Institute, I am writing to voice the Institute's opposition to proposed regulations on "Procurement Methods: Contract Terms and Conditions: Use of Affiliates to Avoid Taxation on Income from State Contracts," which were issued this summer by the Board of Public Works and published in the Maryland Register on August 29, 1997.