Monitor at the same time for big quantity of the websites very difficult. Especially, if you conduct a grid of qualitative resources of different subject. For convenience you can use several services or employ the assistant.
To keep track of operability of your resources, add them to the panel of the web master from Yandex (webmaster.yandex.ru). For this purpose you should or place the file in a root directory of your website, or to supplement the code of your resource with the special meta-tag. Now, if your websites suddenly stop working, you always get the notification on it on e-mail or the phone number.
Services
For viewing statistics at once of a set of the websites, you can use Google Analytics or Yandex the Metrics. Both of these services differ in high reliability and quality of work. Besides you should not make many clicks for change of the address of the website. In Yandex the Metrics, for example, for this purpose has enough to select only the necessary item in a drop-down list. Also you will be able to monitor performance of the necessary purposes by users if select necessary item in settings.
To analyze technical performances of the websites, register in the PR-CY project. There you will find the panel on which you will be able to add some resources. Having pressed only one button, you receive statistics of such indicators as tITs, PR, attendance, the number of the indexed pages, response codes and other. For the mezzanine board it is possible to gain expanded functionality.
For tracking positions of the website, you can use the free program "Website Auditor". Just add necessary requests, make primary analysis, and then update data, trackings to the loudspeaker. There is a set of paid analogs of this program (like CsYazzle or AllPosition), but their functionality not strongly differs.
If you need to fill automatically your websites, then you can use special services like TextReporter. Having discussed all necessary conditions and having paid work, you can focus on analytics, having raised a question of filling on the automatic machine. It is also possible to cooperate with certain specialists, but it takes away a lot of time.
Assistant
If you do not have enough forces for tracking all resources, you can employ the assistant who everything will execute a number of your duties. It is optional that he was in the same city, just pay work to the freelancer, set the necessary objects and the tasks and also ask to send reports regularly.
If finance allows, then for each project it is possible to employ the certain manager who will trace a general state of affairs, to make recommendations about development, additions and also filling.