First, Twitter erupted on the social media scene.  Then came the flurry of application developers, in a very iPhone-esque way, extending and piggybacking on top of the Twitter platform.  Now there are Twitter applications for pretty much everything.

Working in a social media-intensive field, I’m always on the hunt for applications and tools that help me do my job better. Like many of you out there, I’m on Twitter all day, everyday. At Page One, we place a heavy emphasis on social media metrics and results so I started researching and reviewing Twitter search tools. I wanted to find a few applications that would make my life easier and report better results to our clients.

I first had to think about my top Twitter priorities and the kind of things we monitor, report and deliver to our clients. For me, my work on Twitter varies quite a bit depending on the client. Daily activities include event and contest promotion on @CiscoGeeks, monitoring and answering company or product-related questions on @Jaspersoft and other tasks. What am I looking for in a Twitter search tool? I want:

•    A real-time, comprehensive stream of results;
•    A method to target the right audience;
•    Insights into trends, sentiment, tone;
•    URL-tracking;
•    Twitter analytics and metrics on specified words/terms;

What did I find? An overwhelming number of Twitter tools. Five stood out for what I needed to do. For PR or Marketing professionals, these five tools can help you pinpoint the things you search Twitter for on a daily, or even hourly, basis.

1. Monitter
At first glance this tool looks very similar to the search features on Tweetdeck. In fact, Alex Holt, the man behind Monitter, said he originally intended to “mimick Tweetdeck,” but this tool does so much more and boasts a very sleek UI. Designed to quickly and easily monitor responses to product launches, companies, campaigns, or whatever it may be, Monitter allows you to search up to three terms and it automatically refreshes with real-time results.  The real kicker, which makes the life of a PR/marketing professional SO much easier, is that you can RT content or @reply to tweets instantaneously, from any Twitter feed, without logging in and out of accounts on Twitter’s site. Life changing, right? Do you “man” a client’s Twitter feed on the day of a big product launch? With Monitter, you can address comments, questions and concerns directly through their application, saving you a lot of time and preventing that “oops did I just tweet something meant for my personal feed on a client feed?!” moment.

2. Twellow
The self-proclaimed “Twitter yellow pages,” is the easiest way to search Twitter profiles. Twellow will help you target the right audience for your client Twitter feed or social media campaign. This tool has a laundry list of features and bottom-line, this should be your “go-to” site for searching and reaching your target audience.

3. Twitter StreamGraph by Neoformix
Creator Jeff Clark was too modest when he told me “he doesn’t expect the tool itself to be a commercial success.” Twitter StreamGraphs give users beautiful images of data visualization and I see some real value for marketers. A StreamGraph shows the latest 1,000 tweets that contain a specified search term. Within the image, you can see peaks in chatter, which are segmented by different word associations. You can also scan the actual tweets that mentioned the search term plus each associated word.  What a great way to monitor sentiment and tone, track terms most commonly associated with your brand, and how this changes over time. Twitter StreamGraphs are ideal for monitoring promotion around product launches and events — and to report stellar results back to clients in one beautiful image.

4. Scoopler
Scoopler provides real-time search results for terms in Twitter as well as Delicious, Digg, Flickr and Identica. Are you scraping at the bottom of the barrel for Twitter content? This is an easy way to search content across multiple social media channels and see live results. Scoopler goes one step further; it also shows you the most popular links, videos, and/or images for your search term, so you can pick up the hottest content as it’s posted. I chatted with co-founders AJ Asver and Dilan Jayawardane about this feature and they gave a great example about seeing a video of the Hubble mission shuttle launch, pretty much as soon as it happened. Are you multitasking for clients and don’t have time for a Twitter content hunt? You’d probably enjoy their “peek” feature as well, which let’s you preview any content on Scoopler, without having to leave the page.

*I also need to give Twazzup a shout out, which is another a great tool and a close 2nd. Similar concept to Scoopler, except solely Twitter-focused.

5. Backtweets
Backtweets is a simple URL search tool. What makes this tool so great? It solves one major social media dilemma… The link to external websites and content in a tweet is usually most important, and if you’re a PR or Marketing professional, you’re probably tracking it too. What if someone doesn’t re-tweet your link and shares that tinyURL you tweeted as a bit.ly instead? Backtweets allows you to search for that original link across all URL shorteners. It’s also a great way to see who is linking to your client’s website, but not mentioning our client’s name on Twitter.

These five tools push the limits of Twitter search and I find them to be very useful. Let me know too, if you have found other great applications.