Hi I want to do SEO to my website for two different key words. So, when I put backlinks on some other websites(Blog roll links, do follow blog comments, directory, etc) If I put two links on the same web page, but the key words I put there are not same, will it be effective?
I believe that it doesn't makes difference, infact it may reduce the weightage of both links as the OBL increases.
I agree with sunilmamo. But keep the number of links restricted to two. Having too many links on one page with different or even same keywords will flag your site and then the links will lose their value. repeatedly doing this can lead you to receiving a penalty by Google.
if those keywords a close to each others, for example: A B B C Than you can try to mix the to one phrase like: A B C and if not, than use to different links.