While the IBIS World database doesn't use the term "Porter's Five Forces" in any of its reports, the profiles will help with a Porter's Five Forces analysis because they include concepts such as "barriers to entry".
Example: I need to know about how competitive the industry is for publishing kids books
Type "childrens books" into the search box
Click Search
Select the record titled "Children's Book Publishing"
Locate the Tab for Competitive Landscape and Find the Section Barriers to Entry
