John
Campbell

ROAST Head of Innovation

Previously Head of SEO at ROAST, John founded Rabbit & Pork as the fourth agency and Voice Experience arm of TIPi Group. John now also stepped into Head of Innovation at ROAST, creating ROAST LABs and ensuring we are at the forefront of technological advances.

Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
The ‘App Store’ moment for AI: Why brands are rushing to build on apps on ChatGPT
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
07 Apr 2026
Agency News
How to Stand out in AI Responses
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
01 Apr 2026
Agency News
The Launch of GPT Apps: How OpenAI Just Opened a New Channel for Brands
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
03 Nov 2025
AI
Google Launch Audio Overviews in Labs Experiment
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
20 Jun 2025
AI
Google Launches AI Mode: A Game-Changer for Search
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
28 May 2025
AI
AI Mode
Impression and index data for ChatGPT Search using server logs
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
20 Mar 2025
AI
Not a Search Engine, But a Leap Forward: OpenAI’s ChatGPT- 4o Debuts
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
14 May 2024
AI
Will LLMs herald the start of a digital transformation for digital marketing agencies?
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
09 May 2023
AI
shutterstock_1783847447.jpg
Stat City Crawl Manchester & iAB Search Trends Seminar
Close up headshot of a man with short light brown hair and a neatly trimmed beard wearing a dark blue button down shirt against a black background. He looks directly at the camera with a subtle smile, creating a professional and approachable portrait suitable for a team bio or company about page.
John Campbell
•
01 May 2018
Events
Man holding a microphone stands in front of a large projection screen displaying the Google homepage during a presentation or conference talk. The Google logo and search bar are visible on the screen, with the word ROAST shown in the bottom corner, highlighting a digital marketing or SEO focused event setting.