Like an imminent hanging, the approaching enforcement of Apple’s new privacy rules has concentrated marketers’ minds on adjusting to the situation rather than waiting to be rescued by an-as-unbuilt universal identifier. We wrote last week about AppsFlyer’s approach. Now we also have the Post-IDFA Alliance, a consortium of mobile adtech firms offering a resource center with helpful advice and perhaps a little sympathy. Facebook has also launched a site on the topic. Of course, Facebook just got caught knowingly publishing inflated audience data, so examine that gift horse very carefully.