*My cousins have a lump or two,   

But I have none.   

I'm coloured like a grassy hill;   

Never seen one.*

*A war is fought within my bounds,   

Let's hope that peace will be found.   

I may sound like a pub on the roadside,   

But on the internet I reside.*

The answer to this riddle can be given as a URL or as a picture.

*Disclaimer*: this time, no maths involved! That's a promise (and this is not a hint).

**Edit:** Leo's answer taught me more than I realised there was to know about the solution to this riddle. Feel free to edit my question in order to make it fit his answer better. He's done his research better than I did!