I dont know if this is the right section but if it isnt feel free to move it to the respected section.

I am planning to launch a site and I have heard that "Online help desk software" is the highest paying keyword in google adsense and so what I am thinking of is make a site with very much related to the them of online help software. Do you think its good to be targeting the audience based on adsense and what are the chances of promoting it that is getting good ranks in google for such terms