If I have a business, what can I do with a block chain? For example, can I do anything if I'm a deli owner? What can the average Joe do with their own block chain?

Depends on the features of the certain blockchain.
Check out Nxt: https://Nxt.org and Nxt 2.0: https://ardorplatform.org

#Nxt #Ardor news – August 2016: Building with Lego or modeling with clay.
http://nxter.org/nxt-news-august-2016-building-with-lego-or-modeling-with-clay/

I have question about Ardor. If im holding NXT now, and i will recieve Ardors after.. what will happen later? Will there be both coins NXT and Ardors, Or only Ardor will remain?

Ardor is based on Nxt so try it out if you like :

#‎Programming‬ the Nxt ‪#‎Blockchain‬ for fun and profit.
http://nxter.org/programming-the-nxt-blockchain-for-fun-an…/
‪#‎Nxt‬ ‪#‎cryptocurrency‬ ‪#‎API‬ ‪#‎opensource‬
@Nxter_Org

you will keep two of them

BLOCKCHAIN VOTE: 1st Child Chain name for Ardor

https://nxtforum.org/general-discussion/blockchain-vote-pick-your-choice-for-the-1st-child-chain-for-ardor/

Anyone having issues registering at the nxtforum website? The system tells me that I need to verify my account, but I never receive the verification email. I've tried it with my gmail, iCloud and private work email account with no luck. Hopefully an admin from the site see's this and can help out.

I have an Archival node up and forging with 100,000 NXT and would like to join the community.

Crypto Investor Offers $150,000 #NXT Bounty To Launch #Ardor #Blockchain Platform via @forbes

http://www.forbes.com/sites/rogeraitken/2016/08/23/crypto-investor-offers-150000-nxt-winner-takes-all-bounty-to-launch-ardor-blockchain/#3a07f1156a69

This week, we’ve completed 25% of the snapshot process for the future distribution of the ARDR token. Those of you who have kept their NXT stake from the beginning of this process (July, 14th), should have received 1/4th of your NXT stake in ARDR (and growing).

Where does one recieve the NXT stake in Ardor ? Cannot see them on the client .