Saleem,

Since you have good experience with Article marketing...

Consider Focusing on Publicity which can take you in many positive directions...

I'm including more excellent resources to help you Learn all about Publicity!

Some general opinions are fine...

But, my personal opinion is to always research and search out some of the Best Experts on particular topics of interest that Specialize and "Study" what they're Doing.

Besides the Landing Page resources I mentioned...

For some of the Best Copywriting and Sales page information, spend some time with Michel Fortin and company.
http://www.successdoctor.com/
http://www.copywritersboard.com/

Publicity... Press releases etc. etc....

http://www.davidmeermanscott.com/resources.htm
http://www.publicityinsider.com/
http://www.whatsnextonline.com/
http://www.whatsnextblog.com/
http://www.publicityhound.com/
http://www.yudkin.com/publicityideas.htm
http://www.publicitygoldmine.com/
http://www.marketingbestpractices.co.../publicity.htm

Guerrilla Publicity: Hundreds of Sure-Fire Tactics to Get Maximum Sales for Minimum Dollars
by Jay Conrad Levinson, Rick Frishman, Jill Lublin
http://tinyurl.com/y35bry

Every business needs to "Study" John Jantsch's winning concept...

http://www.ducttapemarketing.com/Mar...-Resources.htm
http://www.ducttapemarketing.com/

Have Fun! Best of luck Growing the business...

Phil