A library of 100 articles can represent a great deal of work. It can also contain repeated ideas, outdated information and pages that do not help a customer make a decision.
The number is a publishing milestone, not a point at which search engines automatically begin to trust a website. The useful question is what the articles do for readers and the business.

Start with a real customer question. Decide what the reader should understand or be able to do after reading the answer.
A pricing guide, a service comparison and a process explanation can serve different needs. Three general introductions to the same topic may compete for attention without adding much value.
Link to a related guide when it answers a natural follow-up question. Use anchor text that describes the destination rather than attaching a link to an unrelated word.
Give readers a useful next step. That may be another explanation, a relevant service page or a consultation when the article has helped them decide they need support.
Check factual claims and product details. Replace unsupported statistics, clarify examples and remove information that no longer fits the topic.
Use proper headings and short paragraphs so a reader can scan the page. Review the mobile layout and make sure images display in the right proportions.
Google's people-first content guidance recommends useful, reliable information. Publishing to meet a numerical target is not a substitute for that work.
Review search impressions, relevant visits, engaged reading and qualified inquiries where tracking is available. Look at groups of related pages as well as individual articles.
There is no reliable timetable saying visibility starts at 30 posts, becomes steady at 50 or turns into authority at 100. A useful article may perform with a small library; a large one may still struggle with quality or discovery.
Before publishing, ask whether the new page adds something the existing library does not. Sometimes the better use of time is updating one strong guide.
Use our content strategy guide to plan that work. Friday's SEO and content support can help turn an article library into a clearer, more useful resource.