I had a friend send me 100$ btc and it's been over an hour and it's still 0/3 confirmation. I normally get them instantly or 30 minutes tops. Is their an issue?
one day i send 30$ of btc to a friend from blockchain to zebpay . buy even after 1 hour he said that he didn't not received but when i see the transaction there was nothing at blockchain also but after 3 hours the payment get done successfully by receive the sms .
so i think you should wait . may be another problem also so i will suggest you to contact to support of bitcoin wallet from which you send .
In most cases of your transaction not "hitting" the blockchain comes either due to your client not being up to date with downloading the latest blocks, or that the node from the explorer that you used simply "ignores" your transaction. That's why you should look at various block explorers.
blockr.io
blocktrail.com
These are great explorers that you can use when blockchain.info freaks out, and in the times it doesn't show your transactions.