@duncan
On the real side of things, I would be interested in the amount of increased traffic your product (this great site) does increase sales for our advertisers. I do understand the info is kinda on the secret so I do not expect any numbers.
1. Dollar figures aside, here's what tells the story - our 1st 2 advertisers ever, 4noggins.com and Missouri Meerschaum (Corn Cob Pipes) have been steady advertisers since November 2009 - so going on 29 months straight of sending checks every month. I don't think they are doing that purely out of the kindness of their hearts. It must be that the advertising works.
Some advertisers come and go, but here are some that have had non-stop advertising for significant periods:
Longest running non-stop advertisers on PM.com
4noggins.com - since November 1, 2009 (1 year, 5 months)
Missouri Meerschaum - since November 1, 2009 (1 year, 5 months)
Cup O Joes - since May 1, 2010 (11 months)
PipesandCigars.com - since May 1, 2010 (11 months)
SmokingPipes.com - since June 1, 2010 (10 months)
Cornell & Diehl - since July 1, 2010 (9 months)
(The monthly tally above includes the upcoming month of April.) The full current sponsor list can be seen on the left sidebar just above Bob's list of featured articles.
I just hope we as a group uses them for some of our purchasing needs.
2. This site would not be able to exist in it's current form without our advertiser's support, so you guys supporting them, immensely helps keep the lights on around this cool place you like to hangout at online, and is much appreciated.