Ticketmaster is considered by many to be the Death Star of the online ticketing industry. It’s huge, the default for most ticket buyers, and seemingly impervious to competition. But that hasn’t stopped newer entrants from providing and improving alternatives in the market.

One such 2008 entrant, Ticketfly, announced today that it has bought Gigbot, a site that aggregates music event listings in your local area and sends alerts so that you never miss one of your favorite artists again. Like the newer generation of music promotion sites, it also bakes in a social media component, allowing you to follow other users who share your taste and see which events they are attending.

The idea is to increase ticket sales while also facilitating new music discovery, a concept popularized by online services like Pandora, Hype Machine and Last.fm.

This social dimension is core to Ticketfly’s business model: boosting ticket sales for concert promoters through viral and social marketing strategies. Gigbot’s offerings will be folded directly into the Ticketfly site — particularly its Gigbot Pro tool, which lets artists advertise for their concerts across many social networks (like Twitter, Facebook, etc.) and event sites at once.

Gigbot Pro also facilitates advertising, allowing venues, promoters and artists to inert ads into relevant sites and track how they are performing so that advertising dollars can be optimized.

The startup has 30 customers across the country using these features — another perk it will bring to its buyer.

San Francisco-based Ticketfly, which has been recognized as one of the better independent online ticket promoters going up against Ticketmaster, raised $3 million last month from undisclosed investors. A seed round was also provided in 2009 by Roger Ehrenberg, managing partner of early-stage firm IA Venture Partners.