I was looking at the Conditional Tags Archive and was wondering if it's possible to show a widget depending on different posts / pages a visitor has previously viewed.
For example, if I had a car blog and the blog layout contains a sidebar widget that will display a promotion.
This promotion will vary depending on the types of posts a visitor has viewed.
So if a visitor was looking at posts that have to do with the Mazda brand, I'll be able to write a condition for the widget in the sidebar that reads, if he visited blog post X, Y or Z, then this widget will display a promotion for a Mazda Car Dealership near him.
Same for other car types and promotions.
I'm guessing some would it'd be impossible, but I was thinking if tracking a visitor with cookies, it would seem like a viable idea.
Thoughts or suggestions on where to go from here?
