Slab
slab.com
A knowledge base and wiki platform built for internal documentation, with a clean editor, smart full-text search, topic organization, and verified content markers — with integrations for Slack and GitHub.
Why it is useful
Solves the problem of documentation nobody reads because it's hard to find. Slab's topic structure and verified content system surface the right document without knowing its exact name. The search is significantly better than Confluence, and the editor is faster. Free for up to 10 users, making it viable for small teams who want something better than a shared Google Drive folder.