The verdict in three sentences
In 2026, an expert B2B blog remains profitable in Dublin: a programme of 4 to 8 articles/month costs 1,200 to 3,000 EUR/month and generates, after 6 to 9 months, 30 to 60% of organic traffic and a lead flow at 12-25 EUR each. Data-dense, E-E-A-T content resists AI Overviews better and becomes a source cited by AI. ROI turns positive as soon as the average deal exceeds 2,000 EUR.
What an expert blog costs and returns in 2026
Blogging is no longer "publishing articles": it is building an authority library that feeds both Google and AI engines. Here are the observed tiers.
| Tier | Volume | Cost (EUR/mo) | Traffic at 9 months | Leads/mo |
|---|---|---|---|---|
| Light | 4 articles/mo | 1,200 - 1,600 | +1,500 visits | 8-15 |
| Sustained | 6 articles/mo | 1,800 - 2,400 | +3,500 visits | 18-30 |
| Intensive | 8 articles/mo | 2,500 - 3,000 | +6,000 visits | 30-50 |
A serious expert article (research, data, domain review) costs 250 to 450 EUR in 2026. "Raw unedited AI" content no longer ranks: Google rewards real experience and proprietary data.
Generic blog vs data-dense E-E-A-T content
In the age of AI Overviews, not all content is equal. Here is why data-dense wins.
| Criterion | Generic article | Data-dense E-E-A-T article |
|---|---|---|
| Unit cost | 80-150 EUR | 250-450 EUR |
| SEO lifespan | 6-12 months | 24-36 months |
| AI Overviews resistance | Low | High (cited source) |
| Conversion rate | 0.5-1% | 2-4% |
| Natural backlinks | Rare | Frequent |
A single data-dense pillar article can generate more leads over 2 years than ten generic articles forgotten within three months.
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Mini case study
Aoife, marketing director of a B2B engineering firm in Dublin, average deal 6,500 EUR, launches a programme of 6 articles/month at 2,100 EUR/month. By month 9 the blog brings 24 leads/month at 22 EUR. At 4% conversion she signs 0.96 clients/month, i.e. roughly 6,240 EUR of monthly revenue for 2,100 EUR invested — a 3x ROI in the first year alone. Over 24 months the articles keep producing at no additional cost: cumulative ROI exceeds 6.
FAQ
Does blogging still make sense against ChatGPT and AI Overviews? Yes, but only with data-dense, expert content. AI engines cite and rely on authority sources: an E-E-A-T blog becomes a referenced source, which protects and amplifies your visibility.
How many articles per month? 4 to 6 are enough to start, 8 to accelerate. Consistency matters more than volume: better 4 solid articles/month for a year than 20 in two months then nothing.
When does a blog become profitable? Significant traffic arrives at 6-9 months. ROI turns positive as soon as your average deal exceeds 2,000 EUR, because a few conversions cover the monthly investment.
Can we use AI to write? As a research and structuring assistant, yes. But content that ranks in 2026 requires proprietary data, real experience and domain review — raw unedited AI is penalised.
How do I measure a blog's ROI? Track organic traffic, the number of leads attributed to the blog (forms, demos) and cost per lead. Compare to your other channels' cost per lead: a mature blog often falls below 25 EUR.
Let's scope your project. Give us your sector, average deal size and 5 key expertise topics: we design a costed data-dense editorial calendar with a traffic and lead projection. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
