Ebay took the world by storm, as did Myspace, Wikipedia, Paypal, travel websites, etc. What do you think the new web 2.0 craze will be?

I’m CEO of Zenitum, Inc, a small startup company in Seoul, Korea. We launched a web 2.0 service web site called Envible.com (http://www.envible.com) few weeks ago. Primary focus on the site is "infomal learning." In Envible, people can meet ohters over the world and engage in conversion sessions then learn things.
We took casual conversion based informal learning metaphor to the site. The site allows people to share knowledge pakaged in multimedia files (i.e. videos, audios, documents, etc). Also, it has a similar features like here, answers,yahoo.com, for posting specific questions. Moreover, people can meet on our free flash based web conference so that they can teach & learn. By allowing saving the web conference sessions, other people with same interests can learn by re-palying it later. My intetion was to create upward sprial effect which people create more knwoledge based on others’ knowledge.
What would be the best way to market this baby to the world? Plz give me some idea!

From what I understand, Web 2.0 is harnessing the power of the user on a website and encouraging user interactivity and input. Although, I am not even sure I am right with that statement. Can someone please help me?

I really need examples of Web 2.0 social marketing tools. (possibly their benefits as well)

I’d really like to know if there is a website filled with free tutorials and articles about graphic design for WEB 2.0 style websites.

Thanks for helping me.
Designing for web 2.0 isn’t like designing every other site, it has some rules I think. Such as light colors, lots of white spaces, colours fadeout in boxes,standard effects, such as reflection, in logo, etc.
Is there such a site explaining how to build a webpage layout and to design graphic elements following the web 2.0 guidelines then?..

There are so many new Web 2.0 companies popping up, and while I’ve seen list that show all the company names with links to their sites, I was wondering if anyone had put together a directory that contains contact information for the senior executives – esp. name, title, address, phone, and e-mail.

I’m approaching a lot of these companies and it’s such a pain to have to search for each one – using tools like Jigsaw.

Social networking, web 2.0, ajax, ruby on rails, php

I’d like to upgrade my asp.net 2.0 web application and I want to use the new visual studio 2008 and framework 3.5 and add some silverlight codes too. Is there any tutorial or video that can guide me through this whole process so I won’t mess up my original application?

I plan to make a web 2.0 application, I don’t know what kind of web application will be popular, and I hope the web application be a good business model, so I can earn some money from the web application, could you give me some suggestions?

So, what are the latest Web 2.0 applications using as their programming language?

I mean, twitter, pownce and all that good stuff. Are they developing everything with just HTML, CSS, PHP and MySQL or is there some other language in the mix?
Great responses so far…

If you could comment on the pros and cons of using Django or Ruby on Rails compared to LAMP, that would really help. Thanks!

There’s much talk about Web 2.0 these days among savvy Internet people. But how would you explain what it is about to a non-techie Internet newbie? In other words, how would you explain Web 2.0 in pure lay man’s term?