What are some alternatives?
import.io - Import. io helps its users find the internet data they need, organize and store it, and transform it into a format that provides them with the context they need.
Xen - Xen Project: Open Source Hypervisor, High Performance Clouds, Free Software, Open Source Virtualization, Open Virtualization, Cloud Computing, Desktop Virtualization, Mobile Virtualization, Embedded Virtualization.
Scrapy Cloud - A cloud-based web crawling platform, allows you to easily deploy crawlers and scale them on demand.
LXC - LXC by Linuxcontainers.org is a set of tools, templates, library and language bindings. It's pretty low level, very flexible and covers just about every containment feature supported by the upstream kernel.
Content Grabber - Content Grabber is an automated web scraping tool.
CoreOS - CoreOS platform provides the components needed to build distributed systems to support application containers.