Hi @luckybit your comments are very insightful and diligent.
Part of the campaign is proof of advertisement, the proof will be a photo of the billboard as well as a video because photos are easy to doctor. I will also include the invoice and proof of payment to the billboard agency. The plan is to eventually have the agency receive SBD for additional transparency and improve adoption rates.
WIth outdoor media, it is always difficult to gauge effectiveness in terms of signups, unless a referral code is given to give the new signup say an extra 10$ for using the code.
There is another solution, I have registered steemdrive.com which currently points to this post, but if the steemdrive.com URL is flighted on the billboards, it can be used as an onboarding site with tutorials etc and a signup link to Steemit.com for the user to join once comfortable enough to wade into the waters of Steemit,
By landing on Steemdrive.com, and signing up thereafter we can be semi-certain that the signup came from a billboard.
Another way to gauge effectiveness is based on geographic signups from Durban South Africa, compare the number of signups from Durban before and during the month long campaign, if the adoption rate increased during that time then the billboard was a success.
Steemdrive.com as a landing page is a good idea if you keep a mailing list or something similar. This way you can register and track statistics and present them in your future posts. As a dual purpose the landing page and mailing list can become your mechanism to communicate with your street team for in the field word of mouth advertising aka buzz marketing.
fantastic, thanks for the advice @Luckybit, you have lot's of good input. Would you like to join as liaison for your region? if not, I can add you to our slack pvt war room channel as an advisor if you like.