I found that google toolbar is a great thing to have as they have popup blocker. but i had a question about google toolbar and stumble upon toolbar. both of the sites have voting. And when you vote on stumble upon you get tons of traffic to your site. it a really great exchange. but google toolbar also has voting. but i dont know if i will get tons of trafic with google vote or not. Does it help with SEO and PR how about SERP?