I am interested in your offer (permanent 500 links from Google+, facebook and twiter for 30 USD) and I will use your services. But first I need:
1. to wait for few days till the first chosen freelancer makes links in social networks
2. to distrubute keywords and links of inner pages where I will need links from you most.
I will let you know. If you don't get any news from me till Friday, please contact me (I have quite much work...).
By the way, I could take 100 Google+ for 5 USD, even right know. Might it be a good start for cooperation? Let me know.