Is StumbleUpon a good place to submit link for getting traffic?

Which type of url is more friendly to SEO, the numbered generated urls or the page descriptive urls? If they impact the rankings then by how much?

If say my one page is ranking high in Google which has plenty of good links linking towards it. Now, if I have to move the page to another section of my site. Then obviously I will have to 301 redirect it. Should it lose the value in terms of SEO?

Suggest me some good SEO Tips for Non-Technical Content Writers. I have doing some searching on my own for some time but I haven't been satisfying answer.

What is Content Interlinking?

How to increase referral traffic

What is Schema Markup?

While guest posting in which position should my link to get more link juice in the content or at the author's bio section?

Including Testimonials increased my conversions about 10% since last month. We used my former and regular clients to share their experiences with us. We used photos, short description of their projects, how to achieved what they wanted etc. I though I should share this with you guys.

I am looking for an ad network which provides good eCPM rates for Asian Traffic(India, Bangladesh, Philippines).