Hello,
I'm not sure If I'm in the correct forum. Please move if it isn't.

Can I use small logos on my website of which payment methods are accepted? e.g. VISA logo, MC logo, etc...

I am not sure if I must obtain some kind of approval to use them. If I can, where can I get them?

A lot of businesses showing them actually. but I want to make sure.

use em along with the payment processor you are using .
IE : if you have your own merchant that accepts them then u can use them , if you use a third part then use them along with their logo and it will fine .

Thanks for a fast clarification, appreciated :)

Barclays Merchant Services in GB are very touchy about their Logos being used on websites, even though we have a Merchant Account with them we had to get permission first to use it,this is TRUE!!
(I am known for being a leg puller,but this is really true);)

CCnow does not allow merchants to put Visa or Master logos on their (merchants) web sites.

Also check out: Online Logo Use for Visa (http://www.usa.visa.com/business/accepting_visa/marketing_center/logo_usage.html?it=c|/business/accepting_visa/index%2Ehtml|Online%20Logo%20Use) and Get Our Brand Materials for MasterCard International (http://www.mastercardbrandcenter.com/mcbrand/index.jsp?screen_name=expertDownloader)

As cavalry correctly points out, check with the 3PP TOS / AUP if you are using them. And also - MasterCard has different logos depending on what you are doing, make sure you use the correct one

I've failed to see anything about logos in 2checkout.

Thanks Corey for both links, I am grabbing them right now! ;)

No one will blame you if you put up some CC logos on your website as long as you have some cc processing on it.