I would suggest something that targets your potential customer better... "Street Smart" doesn't sing to me as a business owner. A vulnerable Business Owner might feel more comfortable and protected with a more savvy name/campaign.
Perception is everything.
Look at
DMediaWest.com
This site shows maturity and thought. Insight and design are implied. Intelligence and youth without adolescence. It's a difficult balance but attainable.
The slogan is non-descriptive but yet says exactly what the buyer is looking for.
You slogan doesn't have to be fancy or artsy or brilliant... as much as it needs to STICK to your visitor and convey the message you want them to take away.
Looking at your initial post, what I see is that you are offering a "web branding" service. You research and aquire the name, design, market and offer SEO services. This is Branding.
You are dealing with companies that, for the most part, may have other forms of marketing... known as MEDIA
You now you're branding media on the Internet...
Here's one for you... sophisticated yet subtle, has a nice ring, can still be youthful and creative while being mature and reliable...
Drum roll...
"Inter-Media Branding"
Slogan: Simple Solutions for a Technical World
Tag Line: The future of Digital Media Branding Solutions
InterMediaBranding.com
Another suggestion....
Digital Media
Slogan: Kinetic Energy
Tag Line: Digital Media gives you Kinetic Energy
DMKE.com
All I ask is 10% of the profits for my consulting fees
GoPC