That sound interesting, so far I've used div's and increased the "padding-left" by 10px for each level.
It would be interesting to know if this makes a difference for google as the document structure in my solution is not as clearly visible as it is with your list-solution.
stargeek
1:17 pm on Mar 10, 2004 (gmt 0)
with the attention google pays to the structural <h1> tags i would bet that a "semantic-web" friendly sitemap, the the <ul> solution, would help.