There are times when it makes sense to write a message now to be
delivered in the future. Reminders are the classic case: if I need to
remember the book sale Friday, I can put it on my task list today and
forget it until the notification arrives. But there are other use-cases
as well: birthday greetings, status message changes when you’re not
around to update things personally, and so on.
Sendible’s
mission is to unify and manage all of these future messages for you. It
offers a single-web based interface where you can manage future status
updates to Twitter or Facebook, messages to MySpace, Friendster, Hi5,
and Orkut, plus future SMS messages and emails, as well as reminders to
yourself. It also keeps a list of your contacts (developed as you send
messages) and lets you view all of your Sendible activity in a
calendar-based interface. You can edit messages up until the time that
they are actually sent.
Status message updates are as easy to enter through Sendible as they
are through, say, the Twitter interface - and when they’re delivered,
they’re indistinguishable from live messages. When you move over to
email and SMS, though, you discover the Sendible business model: it’s
supported by its own internal, organic advertising network. With a free
account, you can play on either side of this network.
When you send an email or SMS via Sendible, they’ll tack a little ad
on at the bottom. Some of those ads are their own - little things like
“Plan ahead and schedule…” with their URL. But you can also create your
own ads, with headline, URL, text, and display period - as well as
keywords. When someone else sends a message with one of those keywords,
your ad might be tacked on. You get 5 ad credits to play with - after
that, they come in packages starting at 100 credits for $12. On the
other side of the fence, you can buy SMS credits at 100 for $10,
allowing you to send ad-free SMS messages (and to send more than the 5
per day that you get for free).
Sendible promises to censor any inappropriate ads, though I don’t
see any clear guidelines on their site as to what falls outside the
limits.
One more thing to note: depending on how much your email is locked
down, you may have some issues with Sendible’s emails not being
delivered. That’s because Sendible is spoofing your return address on
mail from their servers, which means that it will fail SPF validation.
If you’re sending to recipients at networks with a thorough anti-spam
lockdown - like Hotmail - this will be a problem.