Those are some nice forms of advertising, but if you'd really like your board to get going, you're going to have to use other forms of advertising as well. Submitting to search engines is a good idea, but it may take awhile before your board can be easily accessed.
You can request a favicon in our community exchange forum if you'd like.
By slogan, I'm referring more to a
tagline, which will help emphasize the idea behind "Penny Arcade". BB's tagline is "Helping you build your board". The tagline can be introduced in your banner or anywhere else throughout your board.