DevHub
Filter issues, activities and notifications
...Create columns for the repositories and people that matters to you; receive desktop push notifications; manage notifications, issues, pull requests and activities; bookmark things for later. Choose between two modes, desktop or menubar; enable push notifications only for the columns you want. All columns support a common set of filters, like bot, label, issue status, text, etc. The Issues & Pull Requests columns are special: they give you all the power of GitHub Advanced Search on your hands (filter by assignee, number of comments, etc. Create a column for each person and see what they are up to commits, comments, issues, pull requests, tags, releases, etc.