Companies which use good advertising and social media strategies
Annoying isn't always bad
A good social media strategy is part of a good advertising strategy. It is important to remember that effective advertising is not always liked by the customer, but sometimes cute is the answer.
When it comes to "out there" media and promotion, LingsCars.com has a high tackiness rating, but is a business with a high turnover.
The UK comparison market is a very good example of using social media and supporting advertising.
Examples such as:
CompareTheMarket / CompareTheMeerkat
These video advertisements along with their supporting online presence, support uninteresting businesses (price comparison for insurance - not exactly a topic which gets people enthusiastic) and are very catchy.