The concept of “social” shopping / commerce has been circulating for a few years, but the idea has yet to reach critical mass. Given how intertwined the purchase consideration process and social media have become, it is surprising that social shopping / commerce still seems to be in its infancy. So, if we aren’t yet ready for social commerce, what do we expect as we use social media to support our purchase decisions?

We expect to be inspired (awareness) – the April launch of Facebook’s Universal Like button and social shopping sites like Kaboodle and Woot! enhance our awareness of brands, products and services we didn’t even realize we even wanted…or needed. They allow us to browse brands and products without being tied down to any one retailer and importantly, they give us a window into what our friends think are must haves.

We expect deals (engagement) – you may not be a coupon clipper, but it’s hard to say no to a good deal. Social media has proven itself to be an effective channel for finding and sharing deals, promotions and coupons. The lure of exclusivity has buoyed deal-a-day services and made them increasingly attractive to retailers, manufacturers and social media platforms (e.g. Twitter recently announced its @EarlyBird service which will share time-bound deals from participating advertisers, Amazon acquired deal-a-day site Woot! in June). In fact, the promise of exclusive deals tends to be a key motivator behind why consumers “like” brands on Facebook or follow them on Twitter.

We expect a megaphone (advocacy) – social media gives us a platform to talk about the brands we love and the ones we want to make sure our friends avoid. A happy customer is a brand’s best marketer.

We may be conditioned to click on deals through Facebook for, say, a TV, but we aren’t yet fully on board with making our purchases through social media platforms. How do you think social commerce will evolve and when do you think making transactions within social media will be commonplace? Will mobile be the catalyst?

On Tuesday Twitter unveiled its first foray into selling products.

The company announced @earlybird Exclusive Offers, which will be time-sensitive deals on products and events that will appear on the @earlybird Twitter account. People can follow that account to get access to the deals.

The idea borrows from private and limited-time sale sites, like Gilt, Groupon and Woot (which was  recently acquired by Amazon), a recent trend in online shopping. It also takes advantage of what companies like Dell, which attributes millions of dollars in sales to posting deals on Twitter, are already doing.

The deals could be on products, like iPods or nappies, or on events, like concert tickets or travel. In a post on a company blog, Twitter hinted that it could filter deals by category, like clothing  or gadgets, in the future. Twitter stressed that it would be selective about which deals were offered and “try and make these deals interesting and of value to you.”

The retailers will determine the price of the items and how many are available. Twitter will earn money from the sales. It is experimenting with different models, like a cut of each sale or a fixed price per deal, said Sean Garrett, a Twitter spokesman. The retailers will collect shoppers’ credit card numbers and otherwise fulfill the transaction.

This is a different approach to e-commerce than the one Twitter were potentially toying with last year, in which retailers could offer transactions on the site based on what people are writing about. A running shoe retailer, for example, could offer shoes to people who asked about the best shoes for running on trails. This might still be possible with annotations, a new service that Twitter says it is rolling out soon so that people can add so-called metadata, like a way to make a purchase, to Twitter posts.

The first deal will appear soon, Mr. Garrett said. They will initially be nationwide, but Twitter is considering offering deals specific to cities or countries later on. If @earlybird takes off, Twitter could become a competitor to Groupon and the many other local daily deal sites, as well as to Woot, Gilt and others.