Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Personal Knowbase - Can't find your critical notes when you need them?
Apple Contacts App - Access and edit your contacts from personal, business, and other accounts with the Contacts app.
ReCsvEditor - Csv / Tsv / Delimited file editor. Supports for very large Files.
Windows Contacts - Windows has many extraordinary organizers, and in the event that you include distributed storage, then you presumably have more.
NoteAway - NoteAway is the simplest, most convenient way to take quick notes on OS X.