diff --git a/README.md b/README.md
index 923f3fb..52a8278 100644
--- a/README.md
+++ b/README.md
@@ -400,33 +400,28 @@ Now, go get started. And most imporantly, enjoy the adventure.
 
 ### P2P
 | **Title** | **Level** |
-|:-----|:-----:|  
+|:-----|:-----:|
+|[Decentralized social networks](https://medium.com/decentralized-web/decentralized-social-networks-e5a7a2603f53)| basic |
+|[P2P ecosystem review](https://ipfs.io/ipfs/QmdFrru4PyHzXGZztEPnYToBR3QovD7fkC1HSyty22LzfD)| basic |
 |[Working offline as a JavaScript developer](https://github.com/wizardamigos/app/blob/master/curriculum/newLessons/workingOffline.md)| intermediate |
 |[NodeUp Podcast](http://nodeup.com/sixtynine)| intermediate |
 |[Mesh networking](https://www.youtube.com/watch?v=tYLU755T6_I)| advanced |
-[P2P social networking](https://louis.center/p2p-social-networking/) | advanced |
-|[How to build a P2P Photos app](https://medium.com/blue-link-labs/building-a-decentralized-peer-to-peer-photos-app-with-beaker-and-dat-c8a470202b4c)|intermediate|
-| [Introduction to Beaker Browser](https://www.youtube.com/watch?time_continue=10&v=U2B9mwRFE8U) | beginner |
-| [Host outside of Beaker](https://beakerbrowser.com/docs/tutorials/host-outside-of-beaker.html) | intermediate |
-| [Create a markdown site](https://beakerbrowser.com/docs/tutorials/create-a-markdown-site.html) | intermediate |
-| [Share files secretly](https://beakerbrowser.com/docs/tutorials/share-files-secretly.html) | intermediate |
-| [Publish software securely](https://beakerbrowser.com/docs/tutorials/publish-software-securely.html) | intermediate |
-| [Web APIs by example](https://beakerbrowser.com/docs/apis/by-example.html) | intermediate |
-| [Read files using DatArchive API](https://beakerbrowser.com/docs/tutorials/read-site-files.html) | intermediate |
-| [Write files using DatArchive API](https://beakerbrowser.com/docs/tutorials/write-site-files.html) | intermediate |
-| [Diff, commit, revert with DatArchive API](https://beakerbrowser.com/docs/tutorials/diff-commit-revert.html) | intermediate |
-| [Listen for file changes with DatArchive API](https://beakerbrowser.com/docs/tutorials/listen-for-file-changes.html) | intermediate | 
-| [Create or fork a site with DatArchive API](https://beakerbrowser.com/docs/tutorials/create-or-fork-a-site.html) | intermediate |
-
-### DAT
+
+### DAT ECOSYSTEM
+
+**HYPERCORE**
 | **Title** | **Level** |
 |:-----|:-----:|
 |[DAT](https://github.com/datproject/docs/blob/master/papers/dat-paper.pdf)| advanced |
+[Making stuff with Dat SDK (Hyper SDK)](https://www.youtube.com/watch?v=HyHk4aImd_I&list=PL7sG5SCUNyeYx8wnfMOUpsh7rM_g0w_cu&index=20) | intermediate |
+|[Dat/Hyper workshop](https://giters.com/RangerMauve/dat-workshop)| intermediate |
+|Hyper protocol guides](https://hypercore-protocol.org/guides/)| advanced |
 
-#### SMART CONTRACTS (dat based)
+**KAPPA-DB**
 | **Title** | **Level** |
 |:-----|:-----:|
-|[Node VMS](https://nodevms.com/tutorial/)| advanced |
+|[Workshop](https://github.com/kappa-db/workshop)| advanced |
+
 
 ### SSB
 | **Title** | **Level** |
@@ -442,19 +437,23 @@ Now, go get started. And most imporantly, enjoy the adventure.
 | **Title** | **Level** |
 |:-----|:-----:|
 |[Epidemic Broadcast Trees](https://gist.github.com/ninabreznik/d911e36f3171bc4eb8e14cee2ae76d6e)| advanced |
+|[P2P indexing and search](https://github.com/hypercore-protocol/p2p-indexing-and-search)| advanced |
+
+# BLOCKCHAINS
 
 ### SMART CONTRACTS (ethereum based)
 | **Title** | **Level** |
 |:-----|:-----:|
 | [Cryptozombie Tutorial](https://cryptozombies.io/) | beginner |
 | [MetaMask Browser Wallet - tool](https://metamask.io) | beginner |
-|[Solidity contracts - Zeppelin templates](https://github.com/OpenZeppelin/zeppelin-solidity/tree/master/contracts)| intermediate |
-| [Testnet & Testether](https://www.youtube.com/watch?v=qdDcXLxbxK0&feature=youtu.be&t=430) | intermediate |
-| [ERC20 Token - tutorial](https://www.youtube.com/watch?v=JHrQ3l2tT78) | Intermediate |
-| [Smart Contracts in Remix - tutorial](https://coursetro.com/courses/20/Developing-Ethereum-Smart-Contracts-for-Beginners) | Intermediate |
-| [web3 JavaScript](http://web3js.readthedocs.io/en/1.0/) | advanced |
-| [Remix IDE Docs](http://remix.readthedocs.io/en/latest/) | advanced |
+| [Workshop: ABC of writing Ethereum smart contracts](https://www.youtube.com/watch?v=GLCpykkb7Oc) | beginner/intermediate |
+|[Solidity docs](https://docs.soliditylang.org/en/v0.7.4/)| intermediate |
 | [Ethereum dev wiki](https://github.com/ethereum/wiki/wiki) | advanced |
+
+### SUBSTRATE FRAMEWORK
+
+|[Substrate docs (rust)](https://substrate.dev/docs/en/)| intermediate |
+
 ---
 # BROWSER