user1500: I am searching for a solution to monitor all bitcoin transactions (or for first ties at least for addresses inside my bitcoin client).
I found http://blockchain.info/api_websocket is this really reliable? What happens if my client is offline? 
Is perhaps the better way to run a bc-client an use a poll - every second?

user153: This can be done with some degree of effort using the Bitcoin API.
v0.7 even has support for this for addresses that are not in your own wallet:

http://en.bitcoin.it/wiki/Raw_Transactions

There are other tools that you can use to build this capability as well.

libBitcoin
Armory (see Extras)
Bitcoin ABE 


1500: <p>I am searching for a solution to monitor all bitcoin transactions (or for first ties at least for addresses inside my bitcoin client).</p>

<p>I found <a href="http://blockchain.info/api_websocket" rel="noreferrer">http://blockchain.info/api_websocket</a> is this really reliable? What happens if my client is offline? </p>

<p>Is perhaps the better way to run a bc-client an use a poll - every second?</p>
 153: <p>This can be done with some degree of effort using the Bitcoin API.</p>

<p>v0.7 even has <a href="http://bitcointalk.org/index.php?topic=89725.0" rel="nofollow">support for this</a> for addresses that are not in your own wallet:</p>

<ul>
<li><a href="http://en.bitcoin.it/wiki/Raw_Transactions" rel="nofollow">http://en.bitcoin.it/wiki/Raw_Transactions</a></li>
</ul>

<p>There are other tools that you can use to build this capability as well.</p>

<ul>
<li>libBitcoin</li>
<li>Armory (see <a href="https://github.com/etotheipi/BitcoinArmory/tree/master/extras" rel="nofollow">Extras</a>)</li>
<li>Bitcoin ABE </li>
</ul>
