user1957: Bitcoin mining pools are like lending / borrowing cpu time, but it's only for hashing.
Is there something more general; a market where you can lend and borrow cpu time, disk space and so on?

user61: Maybe not exactly what you are asking for but CoinLab have a mining pool that intends to use the computing power of their members for jobs other than hashing.
From the Bitcoin talk forum topic:

We’ve identified a number of opportunities to monetize our growing GPU cluster at a higher rate than Bitcoin mining, particularly for NVIDIA cards:  Protein Folding, Computational Finance, and Big Data Analysis, just to name a few.


1957: <p>Bitcoin mining pools are like lending / borrowing cpu time, but it's only for hashing.
Is there something more general; a market where you can lend and borrow cpu time, disk space and so on?</p>
 61: <p>Maybe not exactly what you are asking for but <a href="http://coinlab.com/" rel="nofollow">CoinLab</a> have a mining pool that intends to use the computing power of their members for jobs other than hashing.</p>

<p>From the Bitcoin talk <a href="https://bitcointalk.org/index.php?topic=99643.msg1089915#msg1089915" rel="nofollow">forum topic</a>:</p>

<blockquote>
  <p>We’ve identified a number of opportunities to monetize our growing GPU cluster at a higher rate than Bitcoin mining, particularly for NVIDIA cards:  Protein Folding, Computational Finance, and Big Data Analysis, just to name a few.</p>
</blockquote>
