FareBuzz and SkyClub
 

Maybe not the place to post this, but i don't know where else to post ~ sorry

Has anyone heard of these 2 websites to book business class tix?

They're suppossed to offer better rates than any travel agency or website of the airline online.

FareBuzz even said they're 40% cheaper than all the rest in Business class.

Has anyone used those websites before and any comment on those sites?

You will probably get better information from the forum Online Travel Booking and Bidding Agencies. This thread, MilesBuzz!, has a different purpose.

In the online forum mentioned above there are these threads that might assist you:
Has anyone used FareBuzz?
Has anyone ever used Farebuzz?

In the TravelBuzz forum you might try this thread:
Best Way To Get Best Business Class Fare?

You will find it difficult to search for information about skyclub.com. Delta's lounges are called SkyClubs. So using "skyclub" or "skyclub.com" as a search term will give you results pertaining to membership to these lounges and not about the subject of discounted biz class travel.