From YouTube updates to Yahoo headaches

September 25, 2025

In partnership with

Waffling between a breakthrough and a breakdown? We’re here to tip the scales in your favor with the latest news, tips, and trends you need to do more with less.

Because coffee can’t solve all your problems.

IN THIS ISSUE

  • 🎁 Community Perks

  • 🎃 Trick or Truth

  • 🎧 SUM Podcast 

  • 🌎 Around the Web

  • ✍️ SUM Poll

  • 📅 SUM Community Events

  • 😂 In the Meme Time

Stop Wasting Hours on Repeat Work

80% of startup marketers spend 5+ hours a month rebuilding docs that already exist. The StartUp Marketer already has 58+ frameworks, templates, and playbooks to save your sanity. Join now for free through December. 

🎃 Trick or Truth: Marketing Horror Stories Wanted

Every marketer has a story that haunts them. A campaign went sideways, spend got screwed up, viral demands spiraled out of control. Share your funniest, scariest, or most outrageous marketing horror story.

We’ll feature the best ones in October for folks to guess: Trick or Truth? Featured storytellers will also snag exclusive SUM merch.

You’re invited to the world’s largest email marketing conference.

Become an email marketing guru at the GURU conference. It’s two days full of all things email marketing. Learn more about newsletters, deliverability, design trends, AI, and what NOT to do with email.

What you can expect:

  • Keynote Speakers: Nicole Kidman, Amy Porterfield & more!

  • The latest digital trends in email marketing & how to increase performance.

  • Networking opportunities - each day!

  • Dj’s, dance contests (judged by Lance Bass, yes for real), breaking world records & MORE!

Spots are limited. It’s VIRTUAL. It’s FREE. It’s time to become an email marketing GURU. Join 25,000+ marketers on November 6th & 7th. Don’t miss out!

SUM PODCAST

🎧 StartUp Marketing Uncut

Deadlines are looming. Budgets are tiny. And somehow, you’re expected to do it all.

Welcome to StartUp Marketing Uncut, a new podcast featuring unfiltered conversations with marketers who’ve been in the trenches. Real talk, real takeaways, in 30 minutes or less.

AROUND THE WEB

  • YouTube is rolling out dynamic sponsorship slots for long-form videos, which lets creators swap out brand integrations after upload. This update could turn back catalogs into living ad inventory and push creator partnerships closer to programmatic media buys. [Liam Parkinson]

  • Reddit wants a bigger slice of the AI pie. It’s in talks with Google to weave Reddit threads more deeply into AI Overviews and products. If struck, the deal could boost Reddit’s influence in AI answers while changing how brands and SEOs show up in search.[Search Engine Land]

  • X is testing a new “Boost” button that lets Premium users pay to expand the reach of their posts in-stream. Pricing ranges from $50 for ~11k impressions to $1,000 for up to ~543k impressions. [Social Media Today]

  • If you’ve noticed a spike in bounces from @yahoo.com, @ymail.com, or @rocketmail.com addresses, there's a reason: Yahoo just cut inbox storage by 98%, leaving many users unable to receive new emails. These will most likely result in soft bounces. [EmailOS]

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SUM COMMUNITY EVENTS

Good News! Expert Sessions are back in October, so block off Thursdays at 1 pm ET for your weekly power hour of growth, insights, and actionable takeaways. These events are exclusively available to SUM members. Not a member? 👉 Join now for free 👈

IN THE MEME TIME