Which is one is better Google Adsense or Infolinks??

I using blogger for my blog and i just want to increase my revenue by affiliate marketing. Can i use wordpress to do that?? I mean buying hosting and then importing the whole blog into wordpress and promote my affiliate products??

Is there any way or tool by which i can check a content in duplicated or not??

Which is the best SEO plugin for Wordpress??

How can i find a topic for my new blog?? Someone with any ideas.

I was wondering that embedding a Youtube Video in my blog post (which will be obviously relevant to my topic), a good idea?? Getting ranked by those Youtube Video keywords, will be wise? or i will get red-flagged??

Suppose, i had been interacted with fellow niche site owner, then can i share it with readers?? Is this a good idea??

I have got some niche topics which are not in English, so was thinking about making sites of those niche by translating them. Will it be good for the site's SEO, or rather i will be penalized by Google??

I am a newbie webmaster and i have lot of questions in mind.

Everytime its impossible for a hobby blogger to write fresh content for his/her blog. How can i recycle my content? In an manner that are fresh.