I have seen an interesting article on Econsultancy blog.  It talks about the logos that have the most resonance with consumers.  Customers recognised several of the logos, but the most well-known were: 

• McAfee (79%) 
• Verisign (76%) 
• Paypal (72%) 
• BBB (37%)
• TRUSTe (28%)

Respondents were asked which single logo gave them most reassurance, and the three most recognised ones are clear winners here: 
The results showed a chasm between the top three and the rest: 

• PayPal (29%)
• Verisign (25%)  
• McAfee (23%) 
• BBB (7%)
• TRUSTe (3%) 

The survey (of 150 mainly US respondents) which accompanied the Usabilia test also reveals much about consumer attitudes to trustmarks. 

• 76% said that trust logos did affect their sense of trust in a particular website, which 64% said unknown logos affected their level of trust. 
• 61% had not made a purchase because no trust logos were visible, while 76% hadn't because they didn't recognise the logo. 

The results therefore suggest that

• Trustmarks do matter. 
• Only a handful are instantly recognisable. 
• If your trustmarks aren't recognisable, then you may be better without them.

You can se