I want to submit my site in Yahoo Directory , is this help me in SEO? I have a really big sites having 15,0000 pages .
Yes, but as long as i know, directory seems not very useful, now yahoo! taiwan cencell the directory.
The contribute content article directory is really good. they allow a lot of different options for backlinking and branding your article that other directories don't. contributecontent.com
I think submitting website in yahoo directory can give better traffic. This can definitely help you in SEO.