Thoughts on Ping.fm/social network site syndication..

Hi everyone

Been pretty quiet on this forum since I joined but its literally cause there is so much useful stuff here to read already

So anyway, ive been investigating and implementing ping.fm content syndication to social network sites like friendster, diigo, delicious etc thru a wordpress blog im volunteering to make/manage for a music artist. (In detail, the blog content goes to to feedburner, then feedburner to twitterfeed, then twitterfeed to pingfm and lastly pingfm to twitter and social network sites.)

I have just read up on marketing to twitter and the importance of creating a good strong following, and some methods to do this.

I maintain the music artists twitter manually using socialoomph to help, but these other sites like friendfeed etc are really intended to purely have syndicated content from the music artists' blog, and maybe some mass-postings to all the social network site accounts thru SENuke - it wont be spam, but what im saying as these sites arent intended to have lots of individual attention put into them.

I wondered if your network of 'followers' matters as much for these social network sites that ping.fm would feed to, as it does to twitter?

And whether taking the time to setup syndication to these social networking sites are beneficial even if you dont have a big network of people, or dont necessarily have many people very interested in you already (twitter/facebook syndication may be a bit more beneficial because you might already have real friends and 'fans' or followers on these 2) - maybe its beneficial from an SEO perspective perhaps, if search engines pick up links you post on social network sites?

Any views on this would be so helpful