I am a wondering if there is a recommended "best practice" for a product search SEO. I know to create a dynamic sitemap file that lists links to all products in the site. However, I want to implement a a bookmark-able "advanced search". Should I let search engines index any of the results? Take the following parameters for a search on a make believe used car website:
minprice (minimum price in dollars)
maxprice (maximum price in dollars)
make (honda, audi, volvo)
model (accord, A4, S40)
minyear (minimum model year)
maxyear (maximum model year)
minmileage (minimum mileage)
maxmileage (maximum mileage)
Given these parameters, there could be an infinite number of search combinations:
Price Between $10,000 and $20,000
/search?minprice=10000&maxprice&20000
Audis with less than 50k miles
/search?model=audi&maxmileage=50000
More than 100,000 miles and less than $5,000
/search?minmileage=100000&maxprice=5000
etc.
Over time, there may be inbound links to a variety of these types of searches, yet they are all slices of the same data. Should I allow for all of these searches to be indexed?