It wouldn't be that hard for url shortener sites to filter urls first, through a blacklist of known spammer urls. That could help. And they could determine the IP addresses of the submitters and reject submissions from IP addresses where spam has been known to originate.
If you use a different URL shortener, please share why you like it, how you use it and what it's advantages and disadvantages are.
Here's a tip. If you see any bit.ly url, you can learn the stats on clickthroughs by adding a plus sign to it. Here's the bitly url I just created for this article click here
http://bit.ly/getshorter+
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Rob Kall is an award winning journalist, inventor, software architect,
connector and visionary. His work and his writing have been featured in the New York Times, the Wall Street Journal, CNN, ABC, the HuffingtonPost, Success, Discover and other media.
Check out his platform at RobKall.com
He is the author of The Bottom-up Revolution; Mastering the Emerging World of Connectivity
He's given talks and workshops to Fortune
500 execs and national medical and psychological organizations, and pioneered
first-of-their-kind conferences in Positive Psychology, Brain Science and
Story. He hosts some of the world's smartest, most interesting and powerful
people on his Bottom Up Radio Show,
and founded and publishes one of the top Google- ranked progressive news and
opinion sites, OpEdNews.com
more detailed bio:
Rob Kall has spent his adult life as an awakener and empowerer-- first in the field of biofeedback, inventing products, developing software and a music recording label, MuPsych, within the company he founded in 1978-- Futurehealth, and founding, organizing and running 3 conferences: Winter Brain, on Neurofeedback and consciousness, Optimal Functioning and Positive Psychology (a pioneer in the field of Positive Psychology, first presenting workshops on it in 1985) and Storycon Summit Meeting on the Art Science and Application of Story-- each the first of their kind. Then, when he found the process of raising people's consciousness (more...)