I've always stayed away from this sort of thing because when I read a blog myself I don't like boxes popping up all over the place. I'm actually trialling the Amazon Context Links on my Celebrity Insider - Photos & News blog.
On first look it doesn't look too evasive but first, in case you are not sure what context links actually are, this is how Amazon briefly describes them:
'Context Links - You create the content. We'll link it. Earn referral fees without having to manually build links. Context Links automatically identifies and links relevant phrases to Amazon products in the content you create.'
As you can see below the link, in this case 'Amy Winehouse', looks exactly like any other link on the blog. The only difference is that when the cursor is held over the link a box pops up, as shown in the example, giving details of an Amazon product relevant to the link - in this case an Amy Winehouse CD.

The pop up box can be styled and there is a choice of colours etc. The maximum number of links per page can also be specified.
It's all straight forward to set up with a simple code to enter within the blog's HTML immediately before the "/body" tag.
Of course the real nitty gritty is to whether this can earn any money. I must admit to having reservations about this.
The draw back with Amazon, as I see it, is that there are several websites i.e. USA, UK, German, French, Japanese and Canadian. As I'm with the UK website prices are in UK £ pounds so this will put off 75% of visitors and reduces greatly the potential.
I'll see how I get on and if the number of Amazon clicks I get weekly increases and, more importantly, if the clickers actually order.
We shall see.
Good luck,
Mike.
Amy Winehouse CD's
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