over the 4-5 months i have published over 3000 unique articles which i have payed well over 10 000usd for, but i still only receive about 20 google visitors a day for that content. i uploaded the 3000 articles after i 301 redirected the old site to a a new domain (old site had 1000 articles, and at least 300visits from google a day), and all the old conetnt receives the traffic fine (301 redirect is working 100percent now and pr went from 0 to 3pr) articles are also good ranging from 400-800 words. 90 percent of them are indexed by google, most of them have been bookmarked to digg reddit etc website domain is over 10 years old - alltopics.com  why google doesnt send me the traffic i deserve?

İ have published over 3000 unique articles to  pr3 drupal site over the past 3 months, yet only get about 20-30 visitors a day from google to my new 3000 articles. i have spent over 10 000usd for those articles, all range between 400-800 words and all pass copyscape. 90 percent of the articles are indexed and site pr3 site. the site is alltopics.com  why do i not receive traffic?