301 or 302 Redirects and the Google Sandbox

Are 301s or 302s better for the your new site on the search engines, specifically Google? Most of what I’ve seen suggests the latter.

From conversation marketing:

- Sites that have had multiple URLs pointed at them using 301, rather than 302, redirects are likely to end up in the Sandbox, too, when they relaunch. 301 redirects tell a web browser that lands on one web address to go to another. 302 redirects tell the web server to send all visitors that land on one address to another. Search engines generally respect 302 redirects, but dislike 301 redirects because they are a common spamming tactic.

From SEG:

By using a 302 “temporarily moved” response instead of a 301, the original URL will remain in Google’s index, and maintain its position as if the page were still there. However, visitors who click on the link will be brought to your new URL, exactly where you want them to be. It’s the best of both worlds — you retain your rankings during that interim aging period, but visitors are redirected to the updated and correct domain.

Personally, I like the 302 method. I’ve seen similar things as the above, and if you still manage to get sandboxed, you can rely on your old site rankings per the 302s. And, as always, remember to do the 301s once the site has been properly aged.