Could I just mention here that it's important to "like" the users main page (the like button) and not just return likes by liking a comment or individual photos. Over the last few days I've gone through the above list and liked most of them, a few have just come back and said "thanks for the like" and just liked my original comment or photos. Its very nice to receive likes in this way but it does nothing in promoting the page and misses the point of the exercise.
I won't repeat my page link here, it's in the first post of the thread.