Online wallet, with tons of information, statistics and charts.

The site offers a number of free ad-supported services:

• Alternative block chain browser
• Javascript-based eWallet
• Payment notification/alerts
• Data and charts providing insight into the Bitcoin P2P network
• Double spend tracking
• JSON and block explorer compatible api
• Multi-signature coordination service (for use with M-Of-N transactions)
• Mixing Service

The wallet available from this service is considered a hybrid EWallet. This means that the coins are not stored with Blockchain.info, but instead held in your browser. There is an encrypted copy of your wallet stored on Blockchain.info's server, but that does not have your wallet password and thus cannot access or spend from your wallet.

The same wallet is accessed using the Blockchain for Android mobile wallet.

To access the wallet, the wallet identifier needs to be known or bookmarked. To allow for the wallet to be accessed using an easily-remembered word or term, the service allows you to enter an alias to the wallet identifier.

Purchases are limited in frequency and amount.

site link: https://blockchain.info/

Choose carefully any service that store and manage funds for you. Very few Bitcoin businesses offer enough insurances to be used to store money securely like a bank at this point.