you are coprrect, this will lead to de-indexing of your pages, unless your scroll page has every product on it at load, but this would mean a slow page for users. I assume that you are going to get pages on scroll via ajax or somthing on demand.

You would need to have to have other pages that link to the products.

I agree, bing for example say only one H1, but for other tags there is no limit, my concern is that it sounds like you my have a problem with keyword stuffing if the page reads un-naturally.

They still have value, you can usually get them to rank quite easly, but if they are spamming like THB suggests i would not bother.

But are they cheap? if so, you may be able to resell them. I have a few that i am sitting on till i get the right offer.

The images on your page should be relevant to your pages content, so describe them with an alt tag naturally will add relevance. The length is not important, but I would not stuff they will a long list of keywords.

You can get around this problem using meta tags.

see this link, what will happen is they will try to prese nt a different page depending on the country someone is searching in. in short only one page will rank in each country

http://googlewebmastercentral.blogspot.com/2011/12/new-markup-for-multilingual-content.html

i could not find any rel=next or prev in those pages, there was a rel canonical.

If you do a rel canonuical then you need to have the content on the canonical page. You can not have a page with ABC the canonical it to a page with XYZ.

If you use rel next and prev. the fiorst page will have rel=next the last will have rel=prev, all pages in between will have both. Google will give credit to the first page with only rel=next, all links pointing to any of the pages will pass link juice to that first page.

http://googlewebmastercentral.blogspot.com/2011/09/view-all-in-search-results.html

http://googlewebmastercentral.blogspot.com/2011/09/view-all-in-search-results.html

I use the Microsoft SEO toolkit, its not so much dynamic, but you can just click the pages you want included. i think this is better as Duane Farrester said on white board friday, you should not include every page in your sitemap. just the main ones. If you list every page it is likly your site map will be ignored in future.

I asked Duane about this at bing, and he suggested that this is only so with large sites, if you have a small site of 10-20 pages then listing every page is not a problem. but all the same i only list useful pages, i dont list contact page, policy pages and the like.