Next we explore these issues and the options available to you in greater detail.
Examples of licensing models:
Basecamp offers multiple license types – all based on the number of projects and storage space. All plans are free to try for the first 30 days.
TickSpot a me tracking service provider that provides a limited featured, single project free forever.
SalesForce.com offers different editions and the license is usually based on the number of users. They too offer a free 30 day trial – without a credit card.