e107 is just another cms. very good for clan/gaming type sites. though can pretty much be used for any type of website
heres 3 of my e107 sites
DJ Passions - DJ Music, DJ MP3, DJ Remix, DJ List, DJ Profile, DJ Community | DJ
DJ Mix Hosting - DJ Music Community
Dance Airwaves - Dance Music Internet Radio
just like thr ammount of plugins they have. they need to work on better sef urls though