In short, the essence of Socialtop fits in one phrase: it is a service for integrating sites with social networks.
With the advent of social networks, the most common way to congratulate on anything (and especially on what the event calendar tells you so helpfully) is to write / draw a greeting on the wall of the addressee. Or like someone's already written greeting. As a last resort - to write a personal message (of course, bowing and confessing that in general you do not know how to properly congratulate).
To understand what the BetPamm project is about , you need at least a little interest in how you can make money on sports without being an athlete — in other words, making bets and predictions. “It is assumed that you are familiar with the principles of the functioning of the bookmakers and the BetFair sports betting exchange ,” they warn you on the website. Let's say that you really know each other. But some moments still need to be clarified. +++
Depending on the audience, the word “announcement” may be associated either with a newspaper or with an Internet service.
Service B-152 allows the user to independently, without the participation of specialists, compile the necessary documentation for compliance with Federal Law No. 152 “On personal data”.
Apparently, the audience of the site sale-sale.ru are shopaholics or at least those for whom the word “shopping” is strongly associated with shopping centers. Using the site, users can find information about any metropolitan shopping center, learn about the stores located there and about volume, which in these stores provides discounts and promotions. In short, sale-sale.ru is a kind of Wizee , the difference is that the first one is a full-fledged Internet service, while Wizee is intended for owners of smartphones. And besides, sale-sale is able to search for a shopping center that a user needs by geographic parameters. +++ 

The principle of the Fixber service operation resembles freelance sites: here, users also select for themselves worthy performers, however, the scope of tasks is limited by the focus of the project - testing sites and software
The traditional scheme of recruitment consists of three points: customer-recruiter-applicant. In this case, the recruiter, who is hired to find a suitable candidate, is usually simultaneously busy on different fronts, working with several customers.Source: https://habr.com/ru/post/131079/
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