Google SEO
2000 — Search Engine Journal
How did Google Toolbar and AdWords shape SEO?
Visible PageRank in Google Toolbar and the Yahoo/Google partnership made optimizing for Google synonymous with SEO. AdWords launched the paid-search counterpart that same year.
Further analysis
Use this entry as an audit checkpoint. The cited source establishes the context; the direct answer identifies what to check before choosing an action.
In SFT, this topic relates to Trust. Check whether the signal is visible on the page, connected to the rest of the website and supported by understandable evidence.
Related search terms include Google Toolbar, AdWords, Yahoo. Use them to describe the issue in a brief, audit or answer page.
Applying SFT
Trust requires observable evidence: sources, consistency, citations, identifiable authors and verifiable claims.