Hi, We have designed a new website which contains more than 1 Lakh dynamic urls, but the urls are user friendly to search engines also it has unique content for all the pages. But some pages the same content will be repeated. Let me know, it is good or not in your experienced.
After google panda affect many site get down. So, its better to use "canonical tag" which will not affect your site.
Thanks Mr. James. Also, I have one more query that adding more links suddenly in a website get spammed.
There are two types of links Internal and External Link If you put your site "relevant internal Links" then there is no chances for spamming issues (because many webmaster make doorway pages to target particular phrase which create spam issue). If you want to add external links then use "no follow" tag. Thanks