Where to go after "Programming in D"

[David DeWitt via Digitalmars-d-learn]

On Tuesday, 1 March 2016 at 17:21:16 UTC, David DeWitt wrote:
> On Tuesday, 1 March 2016 at 16:50:12 UTC, karabuta wrote:
>> I am almost done with the "programming in D" book. Where will 
>> you suggest a go from there. My current focus is on network 
>> programming, database systems, data manipulation and software 
>> architectures for database related apps(mostly Linux platforms 
>> with D).
>>
>> I am aiming to become a hardcore and better coder(quality 
>> code) than you :) Please suggest.
>


Forgot to add:

https://github.com/PhilippeSigaud/D-templates-tutorial