If you haven’t yet started building an email list (but know you need to), this article is for you. You may have heard that a strong email list is one of the most valuable assets you can have, but when you’re starting from scratch, it’s easy to feel overwhelmed. This is partly because many business owners have a hard time envisioning the long-term payoff for the hard work they need to do now.
By default, extract-key is applied to two list elements for every comparison, but if cache-keys? is true, then the extract-key function is used exactly once for each list item. Supply a true value for cache-keys? when extract-key is an expensive operation; for example, if file-or-directory-modify-seconds is used to extract a timestamp for every file in a list, then cache-keys? should be #t to minimize file-system calls, but if extract-key is car, then cache-keys? should be #f. As another example, providing extract-key as (lambda (x) (random)) and #t for cache-keys? effectively shuffles the list.

Though this is a “curated” list, Curata really helps with persistent search where you are researching and staying on top of a specific topic over a long period of time, as opposed to a one time act of curation. So for example, if we wanted to build a newsletter, site, etc… about product updates of the tools in the above list over a long period of time, Curata would be tremendously useful.
Awesome list, Pawan. I have used a good number of them, especially Outbrain, superb tool. I would like to offer one myself, Tweet Rocket. It’s a great tool for any business (or individual) who needs growth of relevant followers over a short period of time. A great tool that we use for many clients, and the results are fantastic! https://thetweetrocket.com
Why It Is Important: “With the complex workings of an agency, we couldn’t live without setting up complex task logic (repeating tasks automatically, assigning multiple people to complete a task, task dependencies), creating milestones for important dates and time tracking for accurate client billing. In addition to the typical project management features like being able to see which tasks are ahead / behind, keeping all of project messages in one place and organizing all our important documents, Teamwork helps us manage how we’re using other tools and how we’re managing our time for peak performance!”
Why It Is Important: “This is one of the most critical pieces to our technology ecosystem because it helps us drive every new sale. It also supports all existing clients, helping us plan, comxmunicate, and get authorization for sprint plans. Our close rates have skyrocketed. We’re expanding relationships with existing clients. We simply would not live without the ability to grow faster, and healthier and that’s the capability that PandaDoc has brought our agency.”
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