Question about google xml sitemap

Hello,

I've an online store with 10k products. My question is : should i put all product links about 10k into google xml sitemap or only categories and subcatergories?

Up to you really, wont matter either way. Just bear in mind that when you are deleting or adding products to update the sitemap. no point using a sitemap if its full or 404 errors.

My self, I'd include every page on my site. Apart from pages that i have blocked elsewhere, non-canonical pages, paginted page, sort pages etc.

Also the max amount of urls in a sitemap is 50k, or 10mb is size. If over that you need to use sitemap indexes and multiple sitemaps

http://en.wikipedia.org/wiki/Sitemap_index

Here you can find out google sitemap view ..check out google.com/sitemap.html