Highlighting what’s at stake with third-party cookies, this Advertiser Perceptions survey found that 69% of respondents expect ad performance to drop when cookies are blocked and 40% to rely more heavily on walled gardens like Google as a result.  Two-thirds (65%) have not implemented new audience targeting solutions to replace cookies although 77% expect brands’ own first-party data will eventually become more important.  The survey just had 52 responses but the answers are probably typical.

Privacy-safe data sharing vendor InfoSum has launched InfoSum Bridge, which lets users apply deterministic, probabilistic, and cohort-level identity resolution methods.    It’s a collection of matching tools that users and business partners can use on their own data as they see fit.  While InfoSum doesn’t construct its own identity graph, it does offer connections with third-party data augmentation partners.

Amazon advertisers can now measure results outside of Amazon stores using a new service from Stackline and Gigi. Gigi will enable unified audience buying for Amazon Marketing Cloud and Amazon DSP, which run ads in Amazon’s online stores and streaming TV channels such as Prime Video.  Stackline’s panel-based multi-retailer attribution will track customer behavior across Amazon, Walmart, Target, and other major online or in-store retailers.