Graphical user interface software; Software for collaborating on writing, debugging and optimizing source code through team chat; software for collaborative development of software; software for task and project issue tracking, task and project management, content sharing and collaboration, general work management, project tracking, document management, business management, transmission and receipt of data, images, and files, messaging and conversation-based contextual sharing of information, organizing and providing a platform for collaboration, sharing of information and interactive discussions to other users, source code repository management, data storage and backup, database management, and facilitating the exchange of information via the Internet featuring collaboration tools; software for use by software development teams to compare, view, analyze, visualize, manage, track, discuss, search, review and otherwise collaborate on, develop and release computer code and user-generated content, plan and track software development issues, perform code coverage analysis and optimization testing, collaborative code review, and continuous integration deployment of software; software for software design and development; software for group messaging, instant messaging, group communication, audio conferencing, video conferencing, file sharing, image sharing, screen sharing, desktop sharing, application sharing, voice over internet protocol (VOIP) communications, and sensing the presence of users using the software and providing user presence information; software for processing images, graphics, audio, video and text; software for use in group communication, namely, software to create postings and memoranda, software for instant messaging, file sharing, and calendar synchronization, and software to facilitate automated integrations with external service providers; software for training, educating, and mentoring software developers; Computer software development tools