PUBLIC MARKS with tags reminder & todo

TellMeLater is an iPhone app that allows you to create quick and simple reminder for all the things that don't diserve to clutter your agenda or task manager : pay rent, watch that show… You are alerted with a local notification on your iPhone but also with an email and a Twitter direct message. There’s no way you’re going to miss it.

ReminderFox is an extension for Firefox and Thunderbird that displays and manages lists of date-based reminders and ToDo's.