It is always best not to select a pay per click company that is currently working for a client who is in the same niche. The fact is, the company will already have the database of keywords ready and this will probably help you because it will save you time. But there can be a conflict of interest at the bidding process. For instance, if the keyword for which you are advertising is visit Paris, then for which company does the PPC provider bid higher Also, you do not want your competitors to find out what keywords you are using. Again, the same person might be writing the advertising copy for you and your competitor. So it is probably best that you should not hire them. However you may select the PPC provider if they had worked for a similar client in the past.
