The simplest way to buy some TSLA or GOOGL or EUR or BITCOIN ))
https://exchange.currency.com/trading/signup?c=ifrr2ra4&pid=referral

Set of instruments for OANDA's data analysis
http://www.trend-lab.ru/2016/08/oandax-full-review.html

Futures volumes for Metatrader 5
http://www.trend-lab.ru/2013/07/clusterx-for-mql5.html

Nice marketdepth for most common cryptoexchanges for MT4
http://www.trend-lab.ru/2014/11/marketdepth-mt4-exchanges-support.html
TheXpert
Published code TradeXpert
Control panel for the MQL5 Best Graphic Panel Contest.
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TheXpert
Published article Step on New Rails: Custom Indicators in MQL5
Step on New Rails: Custom Indicators in MQL5

I will not list all of the new possibilities and features of the new terminal and language. They are numerous, and some novelties are worth the discussion in a separate article. Also there is no code here, written with object-oriented programming, it is a too serous topic to be simply mentioned in a context as additional advantages for developers. In this article we will consider the indicators, their structure, drawing, types and their programming details, as compared to MQL4. I hope that this article will be useful both for beginners and experienced developers, maybe some of them will find something new.

TheXpert
Registered at MQL5.community