Business Cards have been seen as the most important tool physical networkers have because:
- You can hand them out
- You can collect them to follow up later
- They advertise your business – direct marketing
- They create a lasting impression
But they are a cost and like all costs you should work out whether the benefit exceeds the cost.
A lot of networking is now done online though Linked In, Facebook and Twitter and its becoming the focus of advertising spend
http://www.socialmediatoday.com/sites/default/files/adhutchinson/files/ia2(4).jpg
So should you now stop using physical business cards and switch to e cards like about me