Keep an eye on these five businesses bringing fresh ideas to the Web 2.0 arena. From search to microblogging, these tools deserve your attention.

While 2009 might not have been the best year for new companies, 2010 offers much better opportunities.

We've picked out five startups that are bringing fresh ideas to the Web 2.0 arena and are likely to succeed this year.

1. Backtype

The Backtype service lets you find, follow and share comments from across the web.

It indexes comments from millions of blogs and social networks, making them available for search based on a keyword or a URL (especially handy for tracking posts on Twitter).

It also lets you "claim your comments" - by inputting your usernames for several websites such as Digg, FriendFeed or Facebook, Backtype then attributes those comments to you on your Backtype profile.

2. Evernote

Evernote, a cloud-based service similar to mindmapping allows you to save notes from meetings, photos, documents and more, then organises them in a searchable way (or you can do that yourself).

Evernote recognises text in pictures too; you can archive notes from a meeting or keep travel documents handy by snapping a photo of them.

It also supports Ritescript - a division of Evernote - which is a handwriting recognition software. (Evernote also closed out 2009 with $10 million in financing.)

NEXT PAGE: Kosmix and Posterous

  1. These companies and services are worth watching
  2. Kosmix and Posterous
  3. Shout'em

Keep an eye on these five businesses bringing fresh ideas to the Web 2.0 arena. From search to microblogging, these tools deserve your attention.

3. Kosmix

Enter a keyword into search engine Kosmix and it gathers content from across the web, displaying information in modules such as a general overview of the keyword, news and blogs, company profiles, images, video, latest tweets, related content, reviews and guides, forums, shopping guides and more. Quite comprehensive.

4. Posterous

Posterous is a publishing platform that lets you post pictures, audio files, links, documents and video - but what differentiates it from other blogging services is that it can be maintained entirely via email, on the go.

It also lets you post updates to other sites you belong to, such as Facebook, Twitter and Wordpress, so you don't have to visit those sites individually.

NEXT PAGE: Shout'em

  1. These companies and services are worth watching
  2. Kosmix and Posterous
  3. Shout'em

Keep an eye on these five businesses bringing fresh ideas to the Web 2.0 arena. From search to microblogging, these tools deserve your attention.

5. Shout'em

Shout'em lets you customise a secure microblogging network where you can share photos, files, links and locations with only the people you want-great for businesses looking for a secure alternative to Twitter.

Or, if you prefer, you can synch your account with Twitter and Facebook. Shout'em has also rolled out a mobile client for BlackBerry and iPhone users.

See also: 26 products to watch in 2010

  1. These companies and services are worth watching
  2. Kosmix and Posterous
  3. Shout'em