stack overflow is the largest, most trusted online community for developers to learn, share​ ​their programming ​knowledge, and build their careers.

github is where over 100 million developers shape the future of software, together. contribute to the open source community, manage your git repositories, review code like a pro, track bugs and features, power your ci/cd and devops workflows, and secure code before you commit it.

tadviser - портал выбора технологий и поставщиков

log into facebook to start sharing and connecting with your friends, family, and people you know.

nejnavštěvovanější český internetový portál nabízející vyhledávač, e-mail, aktuální zprávy, předpověď počasí a odkazy, které se mohou hodit.

hang out anytime, anywhere—messenger makes it easy and fun to stay close to your favorite people

enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on youtube.