I was invited to a partnership in a pay-as-you-go cellular startup with my contribution being the development of the entire software back-end including an two-tiered affiliate compensation system, a billing system, and an automated cellular pin system.
MODX Revolution Plugin that operates transparently in the background diligently obfuscating all e-mail addresses it finds - whether they appear as links or as straight text in the given page.
Banners, customer endorsements, featured articles, call outs, and random quotes are just a few of the web based applications which can benefit from randomization.
A need to limit, track, and assess account access to a closed web site with very tight constraints as to ensuring account logins were only by the registered users and not shared.