Overnote or Evernote
Do you mean Evernote ?

Evernote is a software that allows you to record information in the form of notes, images, videos, or web pages. It can be used in multiple environments, with many different devices and / or platforms. A "note" may be formatted text, a web page (whole or excerpt), a photo, a voice memo or a handwritten note and may also include attachments. Notes can be sorted into notebooks, tagged, annotated, edited, commented and retrieved via a search module. It is published by the company that gave it its name 1. The software offers the same kind of features as its competitor Microsoft OneNote which is one of the Microsoft Office Pack software.

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