user196: Recently I've heard of a site which gathers prices from some exchanges, and gives you a mean value.
I've tried googling for it and I failed, couldn't find anything related for some reason.
Could you point me out to such a site?

user105: BitcoinAverage launched just recently. According to their post on Reddit the prices shown


are a daily weighted average
factor in all exchanges currently with available data
are near-live rates


You can hover the mouse over the price to get more details on what exchanges are used and their weight.

user-1: Probably this is more informative and partly older than BitcoinAverage:
http://bitcoincharts.com/markets/

Introduction
Bitcoincharts provides financial and technical data related to the
  Bitcoin network. You can also access this data via our JSON-API.
Market overview
Bitcoincharts uses daily intervals (UTC) to display data. For example,
  the volume of a market will usually be zero at midnight (UTC) and
  increase during the day.


196: <p>Recently I've heard of a site which gathers prices from some exchanges, and gives you a mean value.</p>

<p>I've tried googling for it and I failed, couldn't find anything related for some reason.</p>

<p>Could you point me out to such a site?</p>
 105: <p><a href="http://bitcoinaverage.com/" rel="nofollow">BitcoinAverage</a> launched just recently. According to <a href="http://www.reddit.com/r/Bitcoin/comments/1jl9c2/bitcoinaveragecom/" rel="nofollow">their post on Reddit</a> the prices shown</p>

<blockquote>
  <ul>
  <li>are a daily weighted average</li>
  <li>factor in all exchanges currently with available data</li>
  <li>are near-live rates</li>
  </ul>
</blockquote>

<p>You can hover the mouse over the price to get more details on what exchanges are used and their weight.</p>
 -1: <p>Probably this is more informative and partly older than BitcoinAverage:</p>

<p><a href="http://bitcoincharts.com/markets/" rel="nofollow">http://bitcoincharts.com/markets/</a></p>

<blockquote>
  <p>Introduction</p>
  
  <p>Bitcoincharts provides financial and technical data related to the
  Bitcoin network. You can also access this data via our JSON-API.</p>
  
  <p>Market overview</p>
  
  <p>Bitcoincharts uses daily intervals (UTC) to display data. For example,
  the volume of a market will usually be zero at midnight (UTC) and
  increase during the day.</p>
</blockquote>
