LucidCharts - Lucidchart provides collaborative online diagramming to make it easy to draw flowcharts, org charts, wireframes, UML, mind maps and more.

Doctopus - An octopus for docs! Teacher-built tool for scaffolding, managing, organizing, and assessing student projects in Google Drive.

Autocrat - Flexible, easy to use document merge tool that creates PDF or shared Documents from spreadsheet data.

Flubaroo - Flubaroo is a Google Spreadsheets Add-on that helps educators quickly grade and analyze online assignments and assessments, as well as share scores with students!