So, let me understand this.
A user goes to CryptoGraffiti and writes whatever message in the space given. Then, your software generates bitcoin addresses in relation to the human text/message a user just entered. After that, I use my wallet to send bitcoins to those addresses your software generated? However, the "messages" now in the blockchain aren't in plain text. You need to use your software to convert it to plain text? Do I have this right?

I love the idea of this site. The only thing is, you gotta make it more user friendly. Make it sooooo easy.
In my opinion, it give the "average user" too many options.
"Import to wallet"- medium to hard difficulyy for average user
"instant", "list", "csv"- average user doesn't even know what that means as far as bitcoins and wallets, etc. are concerned.
And the costs, and amount, and donation, you might want to specify is that in btc or usd.

Is it possible to just have the user type their message, then say send x amount of bitcoins to xyz, and then your service automatically sends the funds to the blockchain?
I love the idea of your site. PM me

This is a nice service!

How to query the text info stored in previous blocks? Can we view the text from blockchain directly, instead from your website?

Yes you can, go to some transaction in blockchain.info, and scroll down until you see this:

Output Scripts
OP_DUP OP_HASH160 687474703a206269742e6c792f47433535313337 OP_EQUALVERIFY OP_CHECKSIG
OP_DUP OP_HASH160 d76665a1a48815f000654d159bcef7ca3fd282c4 OP_EQUALVERIFY OP_CHECKSIG

Now copy paste the hex string "687474703a206269742e6c792f47433535313337"
to this site:
http://www.dolcevie.com/js/converter.html

and press "Hex to ASCII"

The message stored in the block chain appears.

I feel like this sort of thing already exists? or is it not that simple to do

I know that miners can put messages when they find a new block. But is it different from your method to encode messages? I thought there is only one way to put text into bitcoin blocks.

I just want to say how much I love your product. I have started putting my git commits in the block chain as a proof of existence experiment and recently at the World Crypto Network we put a hash of our Town Hall Meeting in there.

This is a very powerful idea. Thanks so much. I hope there will be updates.

Oh you mustn't stop doing this, it's important. I am starting to think that this aspect of block chains is more valuable than the currency. Because it's not really money that has value, it's the work/movement it represents. If people can prove their work and have individuals independently verify it by performing checksums over the course of their life, then over time it would build up a picture of person's contributions to their civilisation. And not just the result but the evolution of their thoughts and plans.

A friend of mine made something similar for the alt chains but it was for Bittorrents: http://blockchain-link.com/

Money fills the gap between our purchasing decisions; our measures of sacrifice. But it dances with time too. Time and energy.

I will think more about this. Thank-you for your time and energy 

Let's say you are the owner of the bitcoin address that receives donations for Bitcoin protocol development. You can publish the fingerprint of the new Bitcoin core release in the bitcoin's block chain, having it signed by the address that receives donations. Everyone can then verify the integrity of the new version and be sure that it was released by the person who controls the donation address. If the named address is a multi signature address, the whole development team could sign the release.

In addition, let's say you want to donate to erowid.org:
http://www.erowid.org/donations/donations_cryptocurrency.php

They have a static address available for bitcoin donations:
http://bitinfocharts.com/bitcoin/address/1BuA9NqUa66k3aVVYExo22rBZRRyJ2vCFr

With cryptograffiti you can compile an additional output address to be included in the donation's transaction.
For example, you enter the text "Thank you, Erowid!" and receive the according bitcoin address: 18hJoc46nY3aTL7cFa2Wt88WMHbT7wcdiX

Now you make a transaction to these two bitcoin addresses:
1BuA9NqUa66k3aVVYExo22rBZRRyJ2vCFr (donation)
18hJoc46nY3aTL7cFa2Wt88WMHbT7wcdiX (Thank you, Erowid!)

and once the transaction gets saved into block chain, the message you attached to your donation is saved forever. Everyone can decode the donation transactions made to erowid and see if there are any messages attached.

Similarly, services could be paid for, having short messages attached.
Let's say I run an automatic SMS sending service that takes payments only in bitcoins. The SMS sending engine detect a new incoming transaction and decodes the message attached to the payment. The message includes the target mobile number and a short message to be sent. SMS gets automatically sent and the operator gets paid.

Endless possibilities amongst others, I have discovered love messages and web address advertising in the block chain. In early blocks there were even links to child porn. gets controversial