What is a fair number of days for Cookie Retention?
 

How many days do you guys consider fair for a program's cookie retention? 3? 30? 90? 365?

Is there an industry standard?

the longer u make it the more or a selling point it'd be to affiliates, as part of the over all package, but then you need to consider u'r overall business model ... has to viable so both parties win-win ... IMHO

Id say 30 days is a good standard, more is generous and less is doable if the program is attractive enough for other reasons.