USGBCs online web-based reference guide

I guess I'm old-school and like referring to the PDF version of the reference guide -- quick and easy to navigate. I use that and then dive into more specific resources when I feel the need. The web-based reference guide, though, is more readily updated, and, indeed, has additional video and other resources. It is also viewable on the website with more ready linkages to other resources like LEED Interpretations.

As Tristan noted, the web-based Reference Guide is more readily updated. That in itself is the reason I use it more often than my PDF or hardcopy of the Reference Guide. There is the added bonus of the videos and easily accessible links to credit-specific resources for most credits too.

I know a while back they had a special where the web-based guide was included in the price of the Education subscription ($199 for non-members, $175 for members). That's the route to go in my opinion.

The fully interactive web-based reference guide is a simple, one-stop-shop for LEED v4 recources for all rating systems including over 50 multimedia modules

To purchase the Web-based Reference Guide (for all rating systems), go to www.USGBC.org and make sure you're logged in.  Hover over "Store" on the top middle of the website, and then click on "Publications."  Then click on a Reference Guide (for example, BD+C v4 - https://www.usgbc.org/resources/leed-reference-guide-building-design-and...).  Scroll down to the bottom on that page and you should see a section titled "Web-based Reference Guide (all rating systems)" for $99.  You can click on the blue "Subscribe" to complete the purchase.  It's valid for one year.