🐹 Hamsterdam Part 148: Weekly SEO/GEO News Recap (10/3 to 10/9, 2026)
By Ethan Lazuk
Last updated:
A weekly look-back at SEO/GEO news, tips, and other content shared on social media & beyond.
Opening notes, thoughts, and musings:
- My website is now eligible as a Preferred Source in Google. I’d be grateful if you added me!
- Welcome to another week of Hamsterdam! 🐹 If you’re new here, this is a weekly summary of hand-curated SEO/GEO news and tips shared on social media. Like a newsletter, but different.
- Curious what I’ve been up to? Check out my latest blog posts from the past week:
- Summarizing “Conversational Capture: A Trajectory-Level Framework for Evaluating Generative Engine Optimization in Multi-turn Human-Agent Interaction”: A Hamsterdam Research Post
- Summarizing “System Attribution in LLM Brand Recommendations: Single Responses Identify the System, Aggregated Brand Profiles Do Not Transfer”: A Hamsterdam Research Post
- The Value of Exact Match Domains (A Hamsterdam History Lesson)
- Let’s Talk About “Associative Networks” in the Context of SEO/GEO: A Hamsterdam Marketing Lesson
- How to Measure Traffic from Perplexity. A Tales from the Query Post
- I appreciate you being here and look forward to sharing the week’s SEO/GEO news below! 🙌
If you’re in a rush, hop down to the news portion. 📰
Or continue reading for two vocabulary lessons plus an introduction.
And we’re off …
🧑💻 Marketing word of the week: “Adstock”
Adstock is the lingering effect of advertising on consumer behavior after the ad exposure has occurred. It’s essentially about how marketing influence can accumulate through repeated exposure and then gradually diminish over time, as opposed to disappearing right after a campaign ends.
While we don’t do advertising as SEO/GEOs, we do focus on brand visibility. Thus adstock gives us a unique lens through which to view the relationship between brand visibility and search behavior.
Influence can accumulate in this zero-click world, and that means repeated presence in AI Overviews or mentions in ChatGPT can contribute to brand awareness that leads to consumer actions down the road, like branded searches, direct traffic, or conversions.
🤖 AI word of the week: “Anisotropy”
In machine learning, anisotropy (pronounced: an-eye-SOT-ruh-pee) describes a situation where vector representations, such as word or text embeddings, are unevenly distributed across a multidimensional space, often concentrating in certain directions rather than spreading out uniformly.
In practical terms, when embeddings are highly anisotropic, many of the points cluster along similar directions, which can potentially make unrelated sentences appear more similar than they actually are.
SEO/GEO professionals should care about anisotropy because embedding-based retrieval systems use mathematical representations of text to find relevant information, and anisotropy can affect how effectively these systems distinguish between different meanings. In other words, semantic similarity isn’t necessarily the same as relevance. Just because two pieces of content are mathematically similar doesn’t mean they satisfy the same user intent.
✌️Introduction to week 148: “And the winner is …”
I had the privilege of attending the US Search Awards dinner this week in NYC as a judge, which afforded me the opportunity to get on stage and give out some awards.
Aside from the winning card getting semi-stuck in the envelope on my first attempt, I found the experience highly exciting and rewarding.
Perhaps the best part of the event was a lifetime achievement award given to Bruce Clay.
All in all, it’s a great opportunity to give back to the search community, and I look forward to contributing to more awards events in the future.
Thank you for supporting Hamsterdam and the cause of SEO/GEO learning. 🙏
Enjoy the vibes:
Missed last week? Don’t worry, I got you! Read Part 147 to catch up.
🌟 Other great sources of weekly SEO/GEO news:
- The SEO Weekly – Garret Sussman, iPullRank
- SEOFOMO – Aleyda Solis
- Weekly Video Recaps – Barry Schwartz, SER
- Weekly SEO News YouTube channel – Olga Zarr, Seosly
- Niche Surfer – Yoyao Hsueh
- Core Updates – Mark Williams-Cook, Candour Agency Ltd.
Time for our weekly review of SEO/GEO social posts, articles, & more …
Now, let’s step inside the white flags of Hamsterdam …
⏩ Jump to a section:
- News, Google updates, & SERP tests
- SEO tips & tidbits
- Fundamentals & resources
- Articles, videos & case studies
- Local SEO
- Technical SEO
- Content marketing
- Local SEO
- Data analysis & reporting
- AI, LLMS, & machine learning
- Miscellaneous & general posts
Or keep scrolling to see it all. ⏬
📰 SEO/GEO news, Google updates, SERP tests & notable posts
Notable updates or news related to Google Search or related SEO topics.
🍟 SEO tips & tidbits
Actionable tips, cool tidbits, and other snackable findings and observations that can be teaching moments.
Essential information, concepts, or resources to learn about SEO or AI.
Longer-form content pieces shared on social, in newsletters, and elsewhere.
🧑💻 Technical SEO
Everything from basics to advanced moves (and also tools).
✍️ Content marketing
From what is helpful content to user journeys and beyond.
📍 Local SEO/GEO
From Google Business Profiles to reviews and more!
📊 Data analysis & reporting
Showing that what you’re doing is helping.
🤖 AI, machine learning, & LLMs
News related to models, papers, and companies.
🤔 General marketing & miscellaneous
This is for great content that isn’t necessarily SEO/GEO specific.
Let’s connect!
Hit me up anytime via text or call at 813-557-9745 or on social or email:
Cheers! ✌️
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