I have a question I've been struggling quite a while with it. I have a basic search engine on my website, where you can search for 4 categories (checkboxes) + a price. Instead of posting to strange url's like /q?categories=a&categories=b&price=2000-3000, I'd like them to be like:
/search/category-a /search/category-b /search/category-a/2000-3000/
The question is now: the user is able to search for category a OR category b. What's the best way to handle this:
/search/category-a,category-b/... /search/category-a.category-b/... /search/category-a|category-b/... /search/category-a/category-b/...
What do you SEO experts suggest? I've red about the the difference between underscores and dashes in google, but I can't find anything about this multi-category issue.