Are Doc Sites Do-Follow or No-Follow?

I was checking the source code of some doc sites and its kinda hard for me to tell if they are ******** or nofollow.

My to main concerns are with scribd and slideshare.

Dose anyone know if these to sites are ******** or nofollow?

I assume they'd be nofollow. It's not hard to check though, you can get an addon for most browsers (e.g. firefox) that highlights nofollow links.

To my knowledge, flash links, if they are plain and clickable without any further java-script, are valid links who get recognized by Google.

Thought on some doc sharing sites you can put a further link in the description.

These are the doc-sites which I SKIP. These don't work in my opinion for link building.:
box.net
docstoc.com
calameo.com
doktus.de


Working one's:
Slideshare
Scribd
issuu
viewdocsonline
edocr

Nomak12 said:

I assume they'd be nofollow. It's not hard to check though, you can get an addon for most browsers (e.g. firefox) that highlights nofollow links.

Click to expand...

But thats the thing, the actual url is embedded within the PDF document, and when I search for my url in the source code it dose not show?