Simon, if you’re off to ThinkVis this Sep, there’s a Site Clinic session where you can have your site reviewed for SEO, Design and CRO, just send it through to Dom for consideration.

I’m no expert but will offer my 10 pence if it helps!

The site took ages to load for me, not sure if this is because of more traffic to your site or other problems. We’ve had some of our bigger sites penalised by Google because of site speed. Check Google Webmaster Tools and you will see under Labs there is a Site Performance section. This is a good place to start to make sure this is not affecting your Google ranking. Some things like size of images, use of scripts or plugins can slow down site speed.

You will also need to build up your links. In 5 months I would say you haven’t got hardly enough links back to your site. A tip use related blogs/forums to try and link from, either from comments,link exchanges, or answering peoples questions. How about building a reputation on Money Saving Expert with a link to your site in your signature.

1 other I’ve noticed is that you may be duplicating meta keywords on this page http://simplychildsavings.co.uk/childsavingsaccounts. I don’t think they are case sensitive, you have put the same keywords twice:
<meta name="keywords" content="Children's savings accounts, children's savings accounts.

Good luck and stick with it

Gary