Colecta is a bookmarking app for searching and filtering YouTube videos, Flickr images, Mixcloud audio streams and Open Library books.

The app is managing a Favorites list, which can be saved, restored, exported as a TSV file readable by your Office solution as a data sheet, exported as a shareable HTML file.

In order to grab the best materials for the subject of your interest, you can use more search criteria, review each result and add the desired items to your Favorites list.