Yes, the contextual links from gsa would work fine in getting the links indexed in the process - But you will need a ton of these links in order to get it working.
Just make sure that your link list has a good list that would allow a high percentage of successful link creation for the contextual links, and that would suffice in getting the web2.0 indexed in the process.
Most often, the web2.0 isn't getting indexed is because the link list is poor, or links were created then subsequently deleted, etc, so having a good link list would be great.