A while ago, I published a post about billing companies and freelancing in Israel. Since publishing this post, I have received dozens of e-mails asking me which service I preferred. Since I only worked with one company, I clearly cannot give any personal recommendations and opinions about all the companies.
If you worked with any billing company, or know someone who has, please fill out or ask him/her to fill out the poll at this site (http://jonnydegani.polldaddy.com/s/billing-company). If you worked with more than one company, please fill it out once for each company. I will publish the results and analysis next week.