Alexander Graf wrote:
There is a problem.
Many auction websites have a "wanted" section, where people can post
what they want. They usually go unnoticed because they're relatively
few and it's very unlikely that someone will have one of the items
listed there. It would be nice if a bot would check my wishlist
periodically and search the web for matching hlistings (or matching
sellers at a different auctions site) and notify me about it if I
want to.
It could also have other uses, but I'm keeping those a secret for the
time being, I think one reason should be enough, no?
You will still have to tell your crawler the urls it should crawl, it
can't crawl the whole web and find only *your* wishlists. So, if the
crawler knows the URL to look at, it doesn't matter how the content is
marked up, semantically. XOXO and/or hReview for items is enough. The
crawler looks at all hReview entries on the page and stores them in a
database. Then it can do whatever you want it to.
But how would a spider know that a XOXO list that it retrieves is a
wishlist and not something else? For example, I can have two XOXO lists
in a webpage, one being a wishlist and another being items I have for
sale. How will the crawler know which is which?
Shouldn't the markup state whether an item is for sale or wanted or
simply a review by the page author?
If not, won't lots of mistaken interpretations happen?
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