rememberthemilk.com

this is the most amazing thing in the world--i think i'm in love. rememberthemilk is a site integrated with google things that lets you make to-do lists using a very nicely done ajax interface.

some of the nice things about it are as follows:

• you can have different categories of task--think firefox or igoogle tabs. (some default categories are personal, work, and study.)
  
• you can set various things about a task, such as the due date and priority. you can get reminders via e-mail, IM, or SMS at a pre-specified period of time before the task due date.
• you can have task contacts and send/receive tasks. you can also share tasks. (this seems really good for organizing things in clubs etc.)
• the site has a really good look and feel and the ajax makes you feel like everything is very fast.
• you can also use this app offline.
• it's integrated with maps etc.
  

i haven't fully explored it yet, but some things that would be nice for it to do are:

• make it easier to specify task due date (by popping out a calendar or something) and other relevant information about a task.
• allow the user to put more details involving a task. (sometimes you need to store notes, addresses, etc. having to do with a task...)
• allow for specification of a specific time of day as a deadline.
• allow for priority as a function rather than flat setting. (an e-mail i need to write in september has low priority now but will have much higher priority as the "due date" approaches.)