What happens in SEO if you submit new page or blog article of the same website to the same social bookmarking sites (about 40 sites) every day?
When I submit to these social bookmarking sites on the first month, I got a lot of traffic.
The second month, I got less traffic than the first month.
The third month, I got less traffic than the second month.
The 12th month, I got less traffic than the 11th month.
My traffic goes down.
I don't know why? Because I submit to the same social bookmarking sites? or what other reasons may cause my traffic goes down?
Should I not submit my new page every day?
How often should I submit new page to social bookmarking sites?
Thanks for reading.