I'm looking for an email reminder service that can do
one time, daily, weekly, monthly, yearly reminders. Please
give me the url to a good service. I'm willing to
pay upto $5 per year if the service is good. They must
display the reminder on the subject line of the email.

I'm currently using MemoToMe.com but they do not display my
reminder on the subject line so I have to open all emails.
They offer a premium service that inludes that feature but
$19 per year is too much. They also allow me to configure my
timezone but messages still don't arrive at the right time (or day).

Here is a list of some services similiar to Memotome.com:

://www.google.com/search?hl=en&lr=&q=related:www.memotome.com/

I didn't go through them, some are free, but I'm not sure about the
subject line thing.

I've tried zohoplanner.com, it's email reminder service has the
feature you want, they put the reminder in the subject :)

I'm afraid I can't do anything about the price, but I can assure you
that www.MemoToMe.com _always_ sends your reminders at the right time.
 If you're receiving them at odd times, then you've probably
configured warning reminders, or configured your final event reminder
to be sent early, which are both Memo to Me options.

If you continue to have trouble, try writing Memo to Me support.