Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of LivePerson (Nasdaq: LPSN) are living it up today, enjoying gains as high as 22%, after the company reported fourth-quarter earnings last night.

So what: Fourth-quarter revenue jumped 22% to $36.5 million, with full-year revenue similarly putting up a 21% increase to $133.1 million. Looking at the bottom line, net income in the fourth quarter came out to $3.9 million, or $0.07 per share.

Now what: Guidance looked solid also, with first-quarter sales expected to be between $37 million and $37.5 million, which should turn into earnings per share of $0.08-$0.10. LivePerson added 25 new names to its customer list, providing real-time chat, voice, and content services. CEO Robert LoCascio said, “2011 was a noteworthy year for LivePerson as we began to shift from the framework of a single product to a multi-product platform offering our customers even more ways to meaningfully engage their customers.”

Interested in more info on LivePerson? Add it to your watchlist by clicking here.

Fool contributor Evan Niu holds no position in any company mentioned. Click here to see his holdings and a short bio. Motley Fool newsletter services have recommended buying shares of LivePerson. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.