Algorithms Visualization: Learn Algorithms and Data Structures interactively

I had to solve a problem for the company I work for, which ended up using B+tree for maintaining a large set of ordered elements handling high frequency operations like insert, delete, update. The test result was promising and I needed an effective way to explain to team members how to implement it and how fast it is compare to the naive way using just plain array. I searched for and found some interesting visual explanation about btree and its variants but none of them satisfied me. I started playing around with some tree hierarchy in d3js and found out that I can demonstrate each step much better this way. I had done the b+tree visualization and felt good about it. Since then I realized how important it is to understand about data structures in software development. I started doing some other data structures and quickly became passionate thinking that I can create useful and interesting thing that could help people like me learn. Many complicated algorithms can be demonstrated this way. I hope I can keep researching and doing this in the long term so much needed your feedback to keep it in the right track. Would you give me more insight about: - Would it help you learn and understand algorithms better? - Are people doing similar things out there? - Would anyone willing to pay thing like this (more completed version) 5$/Year subscription?