the best internal link structure strategy

[ericli]

I have a big website with more than 150,000 unique content pages (100% different from page to page) and all of the contents are database driven. All pages are organized in a TREE structure and the depths are upto 10 levels. Now I try to reorganize the internal links.

Before:
all web pages are linked as "page.asp?aid=****x" (xxx is from 1 to 150,000). Because the levels are very deep so google only indexed no more than 500 pages.

Now:
I am trying to use URL rewrite technologies to rewrite the internal links (no matter what kind of structures I use, the final page for the webserver is still page.asp?aid=xxxx"). With URL rewrite, I can have many many options on the strucutures of the internal links but I think the following two are better:

option 1:
domain.com/leve1/level2/level3/level4/level5.asp; level1, level2 are the parent id; The real link showed on the page will like:
domain.com/0/1222/3444/8900.asp

option 2:
domain.com/parentid/thisartileid.asp; real link just like
domain.com/3444/8900.asp

in option 1, the internal links will have as many folders as the levels; in option 2, no matter how deep a page are, the link only has two levels: parent id and the article id.

Which strategy is better? option 1 or option 2

Currently the links in site maps are organized in the way of option 2, but the links on real pages are written in the way of option 1.

Appreciate your help!

[ogletree]

It really does not matter. The only important thing is to have no more than 100 links per sitemap page. You will need 1500 sitemap pages or so. The question is how do you link those together. I would get 90 or so of my most visited pages then put 1,2,3,4,5,...80 at the bottom of each of those. You can also make sure that each page points to seveal other pages. I have a program that makes static .html pages in mass from a db. It keeps track of the last 10 pages created and each new page has links to the last 10 pages. That way each page has at least 10 internal backlinks. (My math may be off but the point is made)

[ericli]

it is a good point that each page should be linked by other pages. I have navigation links on the top of each page, such as as: home > level1 > level 2 > level 3 > article. I will keep your point in my mind to link other pages such as you said the last 10 generated pages. Thanks.

[ogletree]

Also I never use home. I use what ever kw I am going for on the front page as the anchor text.