inviting a group of users to take ongoing surveys, voting on topics for members - by: seancon1

i want to create this scenario for an "Advisory Panel" to vote on different topics.

1. have a signup form for the Advisory Panel and ask for name, gender, age, and zipcode and continually invite members to join the "Advisory Panel"
2. create new Advisory Panel surveys every 2 weeks
3. invite Advisory Panel members to take the surveys.

the invitations should be open to all but the surveys will be by invite only based on those that have signed up in step 1

i am sure limesurvey can do this but i am unclear as how to set something like this up.

thank you in advance

Sean