Portfolio Building - leftbrainmarketing.net

Email Marketing Careers

How to Build a Freelance Email Copywriting Portfolio From Scratch

build freelance email portfolio

Jumpstart your freelance email copywriting portfolio from scratch and discover the essential steps to attract clients and stand out in the inbox.

Natali
2. October 2025

The 90-Day Window Closed. Nobody Sent a Notice.

AI & Tooling

The 90-Day Window Closed. Nobody Sent a Notice.

The 90-day window for responsible disclosure has closed without any notices or patches,…

leftbrainmarketing Team
12. June 2026

732 Bytes to Root. One Hour of Scan Time.

Small Business Security & Continuity

732 Bytes to Root. One Hour of Scan Time.

A new Linux kernel privilege escalation bug 'Copy Fail' was surfaced in just one hour…

leftbrainmarketing Team
12. June 2026

The Co-Founder’s Black Hole — A Structural Read on Jack Clark’s Automated AI R&D Essay

AI & Tooling

The Co-Founder’s Black Hole — A Structural Read on Jack Clark’s Automated AI R&D Essay

Jack Clark predicts a 60%+ chance of autonomous AI research by 2028, raising concerns…

leftbrainmarketing Team
12. June 2026

Every Benchmark Launched 2023-2024 Has Fallen — The METR / SWE-Bench / CORE-Bench / MLE-Bench / PostTrainBench Sequence

AI & Tooling

Every Benchmark Launched 2023-2024 Has Fallen — The METR / SWE-Bench / CORE-Bench / MLE-Bench / PostTrainBench Sequence

Every major AI research benchmark launched in 2023-2024 has reached saturation or is…

leftbrainmarketing Team
12. June 2026