Researching my target audience

I looked at the following opticians on the internet:
Specsavers http://www.specsavers.co.uk/
Optical express http://uk.opticalexpress.com/spectacles.html
Boots opticians www.bootsopticians.co.uk/
Each opticians advertise glasses to be made for every occasion having the opportunity to purchase normal, designer, or sun glasses, therefore being able to aim at a mass audience; people of all ages, class, gender e.c.t.

All the opticians have a website address which obvoisly benifits the internet users and therefore made eaiser for the buyer.

I also took note from the websites that pictures are taken of a pair of glasses at a high angle shot enabling the buyer to view the whole frame and glass as well as giving an unquestionable identification of the object. I will have to consider this in the makeing of each advert.