Fool.com has listed 5 tools to help us be better investors. These are all available online. If you don't want to invest, but would like to learn about investing, the list will help you too!

Tools to Boost Your Productivity on Twitter » TweetLater.com -

Twitter tool that let’s you do off-line twittering and schedule tweets.

Tweeght -

Thoughful tweets! Awesome idea. =) You may find something inspiring or may inspire somebody! =)

Twitter Grader | Get Your Twitter Ranking -

Get your Twitter grade! Even if just for fun, check it out! =)

Twiddeo: It’s Twitter, with Video! -
Share your videos on Twitter! You can upload from your phone, web or webcam. Hmm!

tweetburner – track links you share on Twitter -

TweetBurner is a tool for tracking the links you share on Twitter and see how many clicks you get.

twhirl | the social software client -

This is another Twitter desktop client and one of my favorites. The interface is clean. You can also use it with multiple Twitter accounts. Unlike TweetDeck, you get a window popup when a new tweet arrives. Click a button and see all your @replies, click another button and you get all your DMs, etc.

Twitscoop – Search twitter, see what’s hot right now -

Check out what’s being discussed on Twitter now. It is continuously updated and it shows you results in a tag cloud. There are two main sections on the home page: “Buzzing right now” and “Hot trends”.

TweetDeck -

A Twitter client that lets you organize your tweets into topics or groups. Quickly look at your new tweets, your @replies, your DMs, and what’s buzzing right now via TweetScoop. This is a very helpful client that’s still on beta as of this writing.