An AI-native growth partner for B2B SaaS founders. A working AI content system installed in your voice in 14 days, with an audit and a retainer around it.https://www.jacgrowthmarketing.com/en-ushttps://www.jacgrowthmarketing.com/blog/how-to-build-a-content-strategy-that-compounds/https://www.jacgrowthmarketing.com/blog/how-to-build-a-content-strategy-that-compounds/A content strategy that compounds runs three pillars at once: social for reach, search for discovery, and a newsletter you own. Here is how to build it solo.Tue, 30 Jun 2026 00:00:00 GMTcontent strategyai-content-enginefounder-led-marketingseonewsletterb2b-saasJared Castronovahttps://www.jacgrowthmarketing.com/blog/the-1997-test-for-your-ai-roadmap/https://www.jacgrowthmarketing.com/blog/the-1997-test-for-your-ai-roadmap/If AI plateaued tomorrow, would your bet still matter? The framing that separates founders building durable value from founders chasing model-of-the-week.Tue, 09 Jun 2026 00:00:00 GMTAI strategyfounder marketingindustry analysisJared Castronovahttps://www.jacgrowthmarketing.com/blog/async-ai-agents-are-your-new-marketing-intern/https://www.jacgrowthmarketing.com/blog/async-ai-agents-are-your-new-marketing-intern/The shift to async AI agents is hitting engineering first. Marketers who learn to brief them like a junior hire will outpace the ones still using AI as a chat tool.Fri, 05 Jun 2026 00:00:00 GMTAI agentsmarketing operationsfounder marketingmarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/first-30-days-of-a-marketing-engineer/https://www.jacgrowthmarketing.com/blog/first-30-days-of-a-marketing-engineer/The Marketing Engineer role doesn't have a standard JD or onboarding playbook. What to build, ship, and break in the first 30 days.Fri, 22 May 2026 00:00:00 GMTmarketing-engineerhiringonboardingfoundersb2b-saasJared Castronovahttps://www.jacgrowthmarketing.com/blog/90-day-content-runway-for-b2b-saas-founders/https://www.jacgrowthmarketing.com/blog/90-day-content-runway-for-b2b-saas-founders/Founders who launch into silence skipped the 90-day runway. The pre-launch content plan that builds pipeline before there's a product to sell.Thu, 21 May 2026 00:00:00 GMTlaunchcontentfoundersb2b-saaspre-launchai-content-engineJared Castronovahttps://www.jacgrowthmarketing.com/blog/review-ai-content-like-a-manager/https://www.jacgrowthmarketing.com/blog/review-ai-content-like-a-manager/Most founders review AI drafts at the comma level. The output that compounds comes from a manager-style review focused on strategy and judgment.Wed, 20 May 2026 00:00:00 GMTaicontentfoundersreviewb2b-saasai-content-enginemarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/brand-voice-doc-isnt-working-for-ai/https://www.jacgrowthmarketing.com/blog/brand-voice-doc-isnt-working-for-ai/Most voice docs describe personality. AI needs decisions. The format that helps an agent write like you, with one example before-and-after.Tue, 19 May 2026 00:00:00 GMTcontentvoiceaifoundersb2b-saasai-content-engineJared Castronovahttps://www.jacgrowthmarketing.com/blog/your-content-calendar-is-the-problem/https://www.jacgrowthmarketing.com/blog/your-content-calendar-is-the-problem/Most content calendars are made in October for Q1. By February the world has moved. Drop the calendar and run a reactive content engine instead.Fri, 15 May 2026 00:00:00 GMTcontentstrategyfoundersb2b-saasoperationsai-content-engineJared Castronovahttps://www.jacgrowthmarketing.com/blog/fire-your-content-agency-without-losing-momentum/https://www.jacgrowthmarketing.com/blog/fire-your-content-agency-without-losing-momentum/The transition plan most founders skip when they bring content in-house. Four weeks, three swaps, no gap in the publish calendar.Thu, 14 May 2026 00:00:00 GMTcontentagencyin-housefoundersb2b-saasai-content-engineJared Castronovahttps://www.jacgrowthmarketing.com/blog/five-ai-interview-questions-for-marketing-hires/https://www.jacgrowthmarketing.com/blog/five-ai-interview-questions-for-marketing-hires/Most marketing candidates claim AI fluency on the resume. Five questions in the interview separate real operators from prompt tourists.Wed, 13 May 2026 00:00:00 GMThiringmarketingaifoundersb2b-saasmarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/ai-agents-are-your-new-employees/https://www.jacgrowthmarketing.com/blog/ai-agents-are-your-new-employees/Stop treating AI as tools and start treating it as staff. What changes about how you run a small business in the future.Tue, 12 May 2026 00:00:00 GMTaiagentsfoundersoperationssmall-businessmarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/customer-interview-is-your-content-engine/https://www.jacgrowthmarketing.com/blog/customer-interview-is-your-content-engine/B2B customer calls contain the language, pains, and beliefs your buyers actually use. The system to turn every call into compounding content.Tue, 12 May 2026 00:00:00 GMTcontentcustomer-researchb2b-saasfoundersaiai-content-engineJared Castronovahttps://www.jacgrowthmarketing.com/blog/founder-linkedin-is-the-cheapest-cac/https://www.jacgrowthmarketing.com/blog/founder-linkedin-is-the-cheapest-cac/B2B buyers research the person before the company. Founder LinkedIn is the cheapest pipeline channel most B2B SaaS companies leave on the table.Tue, 12 May 2026 00:00:00 GMTlinkedinfoundersb2b-saaspersonal-brandpipelinefounder-led-marketingJared Castronovahttps://www.jacgrowthmarketing.com/blog/what-to-fire-first-when-you-bring-marketing-in-house/https://www.jacgrowthmarketing.com/blog/what-to-fire-first-when-you-bring-marketing-in-house/Pulling marketing in-house in 2026 looks nothing like it did three years ago. The four vendors most B2B SaaS founders cut on day one, and why.Tue, 12 May 2026 00:00:00 GMTmarketingfoundersaib2b-saasoperationsai-content-enginemarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/why-saas-freemium-doesnt-work-for-ai/https://www.jacgrowthmarketing.com/blog/why-saas-freemium-doesnt-work-for-ai/The free-to-paid funnel that built B2B SaaS leaks when every free interaction costs real money. Here's the hybrid pricing model AI founders are using instead.Mon, 11 May 2026 00:00:00 GMTaipricingsaasfoundersgtmJared Castronovahttps://www.jacgrowthmarketing.com/blog/rise-of-the-marketing-engineer/https://www.jacgrowthmarketing.com/blog/rise-of-the-marketing-engineer/Why generalists with AI tooling can now outbuild specialist teams, what the new Marketing Engineer role actually does, and where the arbitrage closes.Mon, 04 May 2026 00:00:00 GMTmarketingaicareergeneralistmarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/your-terminal-is-the-new-marketing-department/https://www.jacgrowthmarketing.com/blog/your-terminal-is-the-new-marketing-department/Marketers are using Claude Code to build full systems from the terminal. The WAT framework, MCPs, Skills, and what it means for taste.Mon, 04 May 2026 00:00:00 GMTaimarketingclaude-codeautomationtoolingmarketing-engineerJared Castronovahttps://www.jacgrowthmarketing.com/blog/your-ai-inner-circle/https://www.jacgrowthmarketing.com/blog/your-ai-inner-circle/Solo learners burn out. The people who build a tight circle of builders set the pace. Here's how to start one.Wed, 22 Apr 2026 00:00:00 GMTailearningcommunityfounder-led-marketingJared Castronova