I’m a bit obsessed with the Twittersphere. I’m logged on 24/7 and use the site to promote my work, seek out sources, and network with other freelance writers. Plus, it helps me to maintain my sanity when I’m desperate for some small bit of human contact.

Why not use the site as a virtual business card as well?

If you’re unwilling to leave behind the more tangible business cards currently gracing the inside of your wallet (I still feel that business cards are key to in-person networking), make sure that your online profiles are placed prominently on the cards you hand out.

Career guru Marci Alboher wrote a great post on this topic, in which she rightfully mentions that a professional URL placed on a business card is less likely to become obsolete than other bits and bobs of contact info.

Other clever business types — like this person — model their business cards after Twitter itself!

And then there are those who go so far as to actually wear their business info.

I once did a test drive post on the resume T-shirt, but there are now a plethora of start-ups willing to place your Twitter username — or even your best tweet — onto a T-shirt.

I love these tweet shirts by Made from Dolly:

[$12, Made from Dolly]

TWItoShirt allows you to get your favorite tweets on a shirt. The same goes for Twitshirt.

And now, Twitter has paired up with Threadless to offer Twitter Tees. They’re even having a contest to decide which tweets to print on their tees!

How are you integrating your online profiles into your self-marketing materials?

Related: Using Twitter to Achieve World Domination (In Your Field), Product Placement: The Resume T-Shirt

Yesterday, I posted about getting out more. Hopefully, when you do eventually get out, you’ll remember to bring your business cards with you.

Oddly enough, many freelancers don’t think to get business cards done up for themselves, especially when they’re just starting out. I suppose that, for them, business cards were something they received from full-time employers in order to confer legitimacy upon themselves.

Thing is, they can provide legitimacy to your freelance business as well (in addition to making in-person networking easier and more fruitful).

I’m a fan of two different freelancer-friendly biz-card purveyors: VistaPrint and Moo.

VistaPrint allows you to choose from a database of pre-designed card templates, and then plug in your info. 250 of these cards can be had for “free.” That is, you pay for shipping only. Rates go up the more you want to customize your design (250 for $19.99). There are also many more products to be had throughout the site, which can be ordered to match the design on your cards, such as return address stickers, postcards, brochures, etc.

Moo, on the other hand, became popular by offering alternative-sized cards:

Their minicards can be had for $19.99 and up, and the site makes it easy to incorporate your personal Flickr photos into the design. More recently, they’ve made regular-sized cards available, and these can be had for $21.99 and up.