Possibly this:

Hi,

Bob here from the ** * * and I wanted to drop an email to you and compliment your site. Nice layout, good info, good resources.

I was looking around at a few different sites for product/service information and I thought your's was one of the best.

That being said, I also noticed you guys have some great content related to product/service.  I currently work for a company that maintains a website that offers product/service, www.domainname.com.

We are a nationally recognized, reliable source for product/service on the web and I was wondering if you'd be interested in exchanging/advertising via links between your site and mine?

If not, thanks for the time and keep up the good work!

Thanks,
Bob

Hi,

There was actually a great post on this subject a few days ago, worth taking a look. I think based on this, you could improve the structure of your email. http://www.seomoz.org/blog/how-to-write-email-to-get-a-better-response-rate

Hi Vizergy,

Great answer.

The root domain is strong, so I’d imagine the sub folders will get some benefit from this.

Yes, it is one page-per franchise deal so I think the approach I’ll be taking is making sure each of these pages has its own unique content (and checking for duplicate site wide), targeted towards the locations target KW/Phrases.

With a few decent links pointing to each location page, and indeed the domain, I think will both benefit.

I've been asked by a client to optimise a a webpage for a location i.e. London.

Turns out that the location is actually a franchise of the main company. When the company launch a new franchise, so far they have simply added a new page to the main site, for example:

mysite.co.uk/sub-folder/london

They have so far done this for 10 or so franchises and task someone with optimising that page for their main keyword + location.

I think I know the answer to this, but would like to get a back up / additional info on it in terms of ranking / seo benefits.

I am going to suggest the idea of using a subdomain for each location, example:

london.mysite.co.uk

Would this be the correct approach. If you think yes, why?

Many thanks,