Tweetscan.com – If you are a looking for a back up tool for your Twitter account then Tweetscan is for you plus it’s very easy to use.
All you do is click on Twitter Backup once you are on their site. Select the fields you would like to have archived which include:

Your Tweets
@Replies
Friends
Followers
Direct Messages
Favorite Tweets
or Full [...]

If your sales are lagging, it’s time to take some proactive steps and sign up for social networking sites.
The following social media marketing tips will help you outshine your competition as well as increase traffic to your website and perhaps increase your sales.

Sign up for social networking sites – check out Facebook, LinkedIn, Twitter and [...]

Deborah Smith, a social media expert, got me hooked on HootSuite. If you are looking for a tool that will really help you better manage Twitter and save you lots of time, then HootSuite is what you are looking for.
Some of the features you will love:

Ability to manage multiple twitter accounts
Customization of their interface through [...]

fb140 by Twables allows you to find all of your Facebook friends on Twitter so that you can follow them, and they can follow you!
Thank you John Ennis of TAB Monmouth County NJ (TABMonmouth) for sharing this resource.

TwInbox is an Outlook plug-in that adds a Twitter toolbar in Outlook.
Some features of TwInbox:

Update your Twitter status directly from Outlook.
Receive your friend updates in Outlook.
Archive, manage, group and search your tweets the same way you manage your email (details).
Search, track keywords. TwInbox will automatically download ALL tweets matching the keywords you specify, even if [...]

Tweetstats will convert your Twitter activity into easy to read graphs.
Some of the graphs created:

Your Tweet Timeline
Your Tweet Density (by day and time of day)
Aggregate Daily Tweets
Replies To
Who You ReTweet
What Interface Used

So you’ve just started on Twitter and your network is really not building as fast as you would of liked – remember Twitter is a networking building tool. Here are a few ideas:

Follow interesting people. To find these people, there is Twellow, a Twitter search that allows you to search by name, profession or [...]

Everywhere you turn these days, people are talking about Twitter. There seems to be an explosion of these social network sites the past couple of years – MySpace, Facebook, Plaxo, LinkedIn, and now Twitter. If you don’t know what Twitter is, it is a social networking and micro-blogging site that allows users to send “tweets” [...]