libby, an app for library ebooks and audiobooks

unz.org, search periodicals, books and authors

ewg tap water database

emma, defining writing identity to spot plagiarism

nestmaven, info to help you improve your sleep

navdy, heads-up display for your car

lines of sight around the world

the natural navigator, finding your way using nature

how to make a salad

moving maps, subway/metro maps in relation to geographical maps

olh, the open library of humanities

rover, find dog boarding and dog walking