LinkedIn Alternatives to crawl
CareerBuilder: CareerBuilder is an online job portal with a considerable market share in the United States, Europe and Asia where they also have offices. If you are looking for job postings and company profiles, CareerBuilder is a reliable source you can crawl freely without legal worries.
Monster: Monster boasts of being one of the global leaders when it comes to connecting people to jobs. The company offers its services in more than 40 countries, with some of the broadest and innovative career search, management, talent acquisition and recruitment capabilities. Monster is a great alternative to LinkedIn.
Indeed: Indeed is a global job search engine which is currently available in over 60 countries and 28 languages. Apart from direct job postings, Indeed also aggregates job postings from thousands of websites including HR firms, job boards, company websites and more. If you are looking for job data, Indeed makes for a great LinkedIn alternative.
Facebook alternatives to crawl
Twitter: Twitter is one of the undisputed leaders in the social media space and can be a great data source for brand monitoring, sentiment analysis and a host of other text mining use cases. Twitter data is available via their API and is free to access if you have the right tools to automate it.
Instagram: Instagram, although owned by Facebook, provides access to their data via API which can be accessed on fair usage terms. Instagram also makes for a great data source for brand monitoring, trend spotting and similar applications for brands looking to connect with their customers on a deeper level.
Reddit: Reddit is a social media portal with a huge user base and wide range of topics in the form of subreddits. You can get meaningful insights by extracting Reddit data using web scraping no matter what industry or niche your business belongs to.