Qualifying.Org

This online training site tracks students' progress through courses and the results of their online self-tests. It also features a multi-step online registration, bulletin boards and interactive chat–all mediated through login accounts.

Landmarks Real Estate

This site allows searching through hundreds of rental and sale properties. There is a rich set of search options. Users may create an account to save searches and favorite properties. Real estate agents may track availability of rentals and generate leases directly through the web site.

TaxLogic

This site features online income tax preparation. The site creates accounts, conducts a tax interview, and assigns customers to accountants. It handles credit card billing and tracking the tax return all the way through IRS e-filing.