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+| Research | Info | Link |
+| ------------- | ------------- | ------------- |
+| Privacy marke DB | _Privacy services x web3 initial market DB aggregation: segmentation, key links (web, git, docs), ecosystem, product liveliness etc. 600 projects in the DB._ | [link](https://github.com/web3privacy/web3privacy) |
+
+### Current status
+
+### Internal need
+- actualise current data
+- add new projects
+- moved sunset projects into "Sunset" category
+- fix broken links
+
+### 📖 Contributor guide 
+_Maintaining privacy services database example: PR at GitHub_
+
+### actualization
+_goal_: up to date information in the database
+_algorhithm_:
+1. Open database https://github.com/web3privacy/web3privacy
+2. Pick up a category (from DeFi to Infrastructure)
+3. Check
+
+- product-readiness (actual state: devnet, testnet, mainnet)
+- team status (public, anon)
+- github/docs-readiness (available/not)
+- ecosystem
+- token (yes/no/Coinmarketcap link).
+4. Add missing data & make a PR.
+
+### categorisation
+_goal_: broader list of categories within the privacy market.
+_algorhithm_:
+1. Open database https://github.com/web3privacy/web3privacy
+2. Check ["other"](https://github.com/web3privacy/web3privacy#Other) & ["dapps"](https://github.com/web3privacy/web3privacy#dapps) categories.
+3. Find sub-categories (min 3-4 projects per category). Examples: "marketplaces" or "data lakes".
+4. Once a new sub-category has been found - create it & move those projects under it.
+
+### sunset
+_goal_: actual information on terminated or abandoned projects.
+_algorhithm_:
+1. Open database https://github.com/web3privacy/web3privacy
+2. Check sunset projects (Twitter &/or Discord activity, GitHub activity).
+3. 6 months hiatus - mark them with an icon of the moon next to them.
+
+### category accuracy
+_goal_: check Infrastructure, dApps, Other categories if projects really belong there (some projects misslead readers pretending to be infrastructure, for example)
+_algorhithm_:
+1. Open database https://github.com/web3privacy/web3privacy
+2. Check projects' website, documentation.
+3. Make observations if a projects belongs to particular category (infrastructure - providing broader protocol toolkit for different decentralised implementations).
+4. If project nature differs from category where it exists - move it to the right category.