HubSpot has released a free ebook titled “Expert Advice to Improve Your Marketing Today”. The HubSpot team says, “Looking for practical, actionable, and trustworthyadvice to start improving your marketing immediately? We asked experts from different corners of the marketing industry to reveal some of their best tips. This collection includes brilliant bits of wisdom and advice about topics such as content creation, SEO, public relations, Twitter, and lead generation. Expert contributors include: Ann Handley, CCO, MarketingProfs; co-Author, Content Rules Jay Baer, Founder... [...]