Ideas

But why?
And how would this work/make money?
Why not just start a blog about what you learned today?

It works because it's a more productive way of spending your time than browsing the likes of Digg etc. You spend those spare minutes likely learning something. It makes money via advertising and also affiliate schemes to courses, training and so on where you can learn more about the subject. Furthermore if you like what people have posted, they could then coach you for a fee.

I like the idea. Random and interesting facts, how-tos and topics that aren't necessarily new and in the press, but that people find interesting. Is that what you were thinking?

How would it make $$?

"Random and interesting facts, how-tos and topics that aren't necessarily new and in the press, but that people find interesting" -- you just described:

http://www.damninteresting.com

Also, there is absolutely no way to moderate what people would submit to such a site. Digg has the content that it has because people have voted for it. Any other site would likely have the same type of users and the same type of content, no matter what your intentions might have been.

Insead of digg, how about a daily does of wikipedia?

a virtual journal?...

Nice
Tommy

Exactly how long do you spend checking whether the idea you've had already exists?

I don't use digg much, but I do browse reddit which is basically the same thing. At reddit, they have sub-reddits that display categories of content, which is basically what you're describing, right? I think your idea is good, but I think the strategy of using something like a sub-reddit to pull related content from a high-traffic stream would be more effective than trying to build up a low-traffic stream from scratch. If not, you end up with the moderation problem that ThrasherC brought up because you can't control what people post and vote on once the infrastructure is in place.

Also, can you differentiate from sites like lifehacker.com?

Some thing I learned today... Siliconglen submits way too many ideas into a one week tournament...

The idea could gain some traction. You would need a slick Web 2.0 type interface like Digg has. And what about if what you learned was from a news article... do you post the article? Then you transform into Digg...

A blog with comments enabled could achieve the same thing...

man i love it! in fact we are on process of doin a campain on those lines..its approved by the client!