From their FAQ:
I am a Dispatch home delivery subscriber; do I get unlimited access to premium dispatch.com content and the E-Edition as part of my subscription?
As a home delivery subscriber of The Columbus Dispatch, you will receive access to dispatch.com for up to 10 premium content stories per month. Additional stories, as well as access to the E-Edition, are available for a nominal fee per month. This is called Digital D and this can be seamlessly added to your home delivery account.
What is the difference between dispatch.com and the E-Edition?
Dispatch.com is the web site of The Columbus Dispatch, where you can find up-to-the-minute news, as well as videos, blogs, photo galleries and more. The E-Edition is a digital replica of the printed paper. On your computer screen or iPad, the E-Edition looks identical to that day’s newspaper. We offer E-Edition and unlimited access to dispatch.com together as Digital D. These options allow you to receive the full breadth of The Columbus Dispatch’s in-depth, award-winning news coverage.
What if I don't want to subscribe to Digital D — can I still read dispatch.com for free?
Visitors can enjoy 10 free premium-content articles (including blog posts) each calendar month on dispatch.com, as well as unrestricted access to browse the home page, section fronts, blog fronts, multi-media and classifieds.
Your free, limited access resets every month: at the beginning of each calendar month, you'll once again be able to view 10 free articles for that month.