Thanks for all the replies, I will check blockchain.info and also coinbase.com
For online wallet i recommend choose blockchain(for store small amount), i still doubt about coinbase its like semi-decentralization IMHO
![Undecided](https://bitcointalk.org/Smileys/default/undecided.gif)
also if you want to store medium amount use desktop wallet like electrum v2(support for 2FA) or multibit.
and if you have a budget and want to store big amount, use hardware wallet.
~iki