Lots of these sites are springing up as more and more people look for work, it is usually due to you registering on a job-site. You can write your own CV for free and it will be a lot more accurate/truthful, thus ensuring you don't get caught out at an interview trying to give an answer to something on your CV that you don't recall due to the company putting it in strange way. If you search the web you can find plenty of help on CV's without paying out money to a total stranger.