I am new to SEO and have done a lot of reading on this forum. There are still certain questions unanswered. I have set up 2 mns with EMD and both are on first page of Google at the 9th position. Both keywords are low competition and has 2000 local monthly searches. One website has 1 article and other one has 3. The website with 3 articles first ranked in the top 3 but once i started adding more articles, it was out of page 1. coincidence i guess. But now its on 9th position. I haven't used any kind of tools and have created 70+ web 2.0 for each article and bookmarked each of them on 30+ bookmarking sites. My question is how many articles do i need to include on these sites to reach top 3. Moreover, should i use other keywords(secondary, if yes please tell me how exactly are the chosen. The secondary keywords that i used was of the same niche but did not include the secondary keyword. I guess i got that wrong) for the rest of the articles on the website or the primary keyword itself on all 10 articles? Many of these questions might sound silly, but still i would appreciate your opinions. Thanks in advance.