MongoDB

 MongoDB is an open source, document-based database management system that does not require a table schema description. MongoDB - classified as NoSQL and uses JSON-like documents and a database schema. If all four previous DBMSs are well known to most IT professionals, then few have heard of MongoDB. But she confidently takes the 5th line in almost all ratings. And as a result, in our ranking, she also occupies the 5th position.

Earnings on trading platforms

 Earnings on trading platforms

This includes the sale of goods or the same services on online trading platforms that act as an intermediary between the seller and the buyer. For example, you can sell things that you do not use (are in your possession or are preparing for disposal). So, they can be sold very easily, just on the trading floors. Also, some of your own products that you yourself create as a hobby, but do not sell them on a professional level, including information products and some individual rare services, can also act as goods.


There are both large trading platforms, they are known to everyone, and small ones, but they all have their pros and cons.