I posted this a few days ago in another section, but I think, here itīs more relevant, because all questions are at first related to Google (of course!)
Okay. I (almost...) know all about doorwaypages ;-)
But I miss one very important thing: I found an example I am curios about whether this may work WITHOUT being penalized by Google. The website creates dynamic pages that canīt be spidered due to a session-ID. So a link was set up directly from the homepage to a sitemap with about 150 links to the keyword pages (DWP). There is no link back to homepage from the sitemap or from the DWP, and there are no links from the DWP back to the sitemap, either. None of those pages are linked to another. So to say itīs a one way street, pointing to the main pages. Another important thing is that the links into the regular website that are on all DWP and also the sitemap have a tracking code - therefor each page has its own linkcode/URI to the main pages.
Is this strategie dangerous? I think, it is. Google e.g. would see this as a manner of spamming, due to the lack of connection between the pages and - more important - the lack of backlinks. Also the huge numbers of different links to the main pages may cause problems (the tracking code).
[edited by: oLeon at 12:33 pm (utc) on Mar. 16, 2003]
The website creates dynamic pages that canīt be spidered due to a session-ID.
I think pages with session IDs do get spidered. Launched a portal 9 months ago with session IDs and pages were spidered. (However, we had to change to cookies about 6 months ago when we realised Google indexed the pages over and over again as duplicates.)