Voip and lasik sites...plz review

hi i dont have much informations and tips about adesne. i wud really like to have a good adsense result. i need suggestions about my following site:

http://voip-sms-reviews.blogspot.com
http://www.lasikinfo.co.nr
http://mak4bd.blogspot.com

Code (markup):

i wud really appreciate if u can help me.

 

http://voip-sms-reviews.blogspot.com

Change your ad links to black so they are more visible.. people need to be able to read them in order to click on them!

http://www.lasikinfo.co.nr

I would change your ad link color to yellow..