When I had just started using this forum, I tried to find out what the advantages of signing up for premium membership were but found that there doesn't appear to be anywhere on the site which mentions this.
And so I didn't bother at first! 
I think that this would work best if it was displayed when you click on the
'Premium Membership' link at the top of the page. 
May get some more people signing up if they knew what was on offer, discounts schemes etc. which you only see in the premium forum.Cheers,
Oli
