Drop-down lists

...Will Google trawl them?

[bluegrass]

Will Google trawl the content of a drop-down list?

I suspect it would be better to put a search facility in a simple word list rather than a listbox - if I want Google to trawl the words...

[mcavic]

What does the code look like? Google will crawl href links, including image maps. Not javascript, though.
You may have to add a text-based menu at the bottom of the page.

[Tom_Dalton]

A quick way to check is to "view source" on your final page, as it is seen in the browser. That's all Google can see -- are your links in there, and do they look like links?

I generally try to mirror any dynamic or coded link structure with a straight html version somewhere on the pages. A sitemap is still always a good thing to have, too.