You must be aware of the fact that orkut provides you with an option to include your orkut profile in Google search results. But this may well come up as a surprise for you – Orkut communities are also listed in Google search results.I did a little ego surfing to find my orkut community listed in Google search.You can have a look at the screenshot to get a perfect idea.
The community link in the search results is visible to non-orkut members as-well. This means, you need not be an orkut member to get the orkut community link unlike the profile search feature.
Is your orkut community searchable via Google search?