Do you know of any companies that are offering support over Facebook successfully?

If you are talking about the digital marketing, there are the compnies provides you the support through facebook. If you are running a business need some promotion to sell your products online, that time they will give you the support therough Social media marketing.
In social media they are posting the relevant links of your products, people who are interested contact you directly. and some companies provides you the platform to sell you products/services through online face-book page.

http://apps.facebook.com/shopwithnichesuite/?ref=bookmarks&count=0&fb_source=...

We have a great support solution through Facebook. It's a free app available from tagsocial.com

Ted - FYI - if i click on your link - The domain tagsocial.com may be for sale by its owner!

From the customer's point of view, would you go on Facebook to get customer support for a product that you purchased? I personally will not do business with companies that try to force me to "like" or "friend" them on Facebook. Yes, I have stopped doing business with a couple of businesses that "force'" Facebook down their customer's throats. I understand advertising on Facebook--but if something really interests me, I go to their website. I do NOT click through from Facebook. I do not trust Facebook, I do not like their constant changes to privacy. Although I can understand that perhaps some type of Facebook presence is necessary, it should NOT be a primary way of doing business--and I would be outraged if a company I dealt with provided customer support via Facebook! I do not believe that I am alone in this.

I've been talking to a lot of companies in the past few years who have tried not to market, but to provide customer support in Facebook, through their own company pages, groups, and responding to complaints and praises. But, nobody I have talked with is happy with the efficiency or success of dealing with customers on or through Facebook. The tools for it are limited by Facebook restrictions if trying to do anything at scale.

We have a group for our users and it turned out it is the most popular for technical support. Both our team and power users provide support. Obviously we do not sell or market in that group.

Clearly the customer base decides what works best for them when it comes to support. We provide support through email, phone, our own feedback system and Facebook - facebook being the most active. Like Mitch Rezman said it should be considered complementary not the center - only in our case it happened to become the center because users decided so.

Axel
http://XeeMe.com/AxelS

do you mean customer support solution service, or tools used to provide it? We offert eh service for many customer, and they are delighted how this complements other customer support means, we provide outsource using chats, ticket systems, fan page management, etc.

Not full technical or product support, but we do address customer questions and comments in Facebook. As Alex say, the customers decide what works for them. Facebook is not a good place for detailed discussion, but works fine for quick questions and answers or simple product recommendations. We have a FB icon on our website, but we do not direct inquiries there.

From a facebook metrics perspective, if "likers" and customer engagement are your objectives for maintaining a FB page, addressing customer questions can actually be very successful. It's much better to have your customers instigating conversations in FB than for you to post what you hope is relevant to your customers.

If you're on FB for the right reasons, you will inevitably find yourself offering some level of customer service and support through your company page.

it is all a part of the whole... I agree with other replies that points at the use of websites interfaces and other out of the web (phone) the good thing is all can be integrated, and you leave the customer the choice of using his favorite interface, contact forms, chat system, ticket system, phone call events (from website, fan page or direct phone), the key is to have the right people, processes and tools.... let me give you an example, a customer goes to your website, gets nice chat support, and the agent and process decides a phone call would be better, the agent receives the input, at the same time during the call, the system IDs your customer or lets you add him to your base, and lets you create a ticket to service on a click... you provide a solution and invites the customer through an email, to rate your support, at the same time your fan page is fed with likes and comments about the great experience.... and the viral effect takes place about you providing superb CS.

I believe Google+ is a much better way to support the customer. It is more business and tech oriented than Facebook. You can use the "Hangout" feature with your customers to give them support directly with your help desk. Something to consider.