Is it a waste of time trying to promote ClickBank as a affiliate?

[EM KAY]

Many things matter in affiliate marketing actually all this is bit tricky thing sometimes simple strategies bring really good results but sometimes even hardest work goes all in vain. There are some points on which this whole affiliate marketing is based on:
1- Choose niche in which you yourself have interest in
2- Choose that niche on which your website is based on if you have any blog or website
3- Promote your product only those who have interest in that product
4- Use email marketing
5- Do not forget to get some juicy from social media like twitter and Facebook
6- Youtube can be best medium if your product needs some illustrative videos
Here is link to some other useful stuff related to affiliate marketing success