Until recently (last month I would say), you could find the Chromium nightly builds at this address:
However, it looks like there is nothing there anymore.
Where are Chromium nightly builds now?
Until recently (last month I would say), you could find the Chromium nightly builds at this address:
However, it looks like there is nothing there anymore.
Where are Chromium nightly builds now?
In general, using the Canary build is a better idea than using one of the build directly from Google Storage.
That said, if you do want to use whatever the absolute latest build it, you can follow the instructions on the Chromium getting involved page.
The second link in qweet's answer is outdated. If you want to view the Chromium continuous build waterfall, please visit build.chromium.org.