Beyond these standard positions are a number of additional points occasionally included in NDAs to cover particular circumstances. The number of extra positions that could be included in NDAs is only limited by the creativity and cunning of the lawyer drafting it.
One example of these (which Haggle allows you to easily add) is a no-poaching clause (sometimes called "non-solicitation").
NDAs are often used to protect confidential information during the negotiation of a wider agreement. For example, an agreement to purchase a business, or a long term services engagement. Particularly if those negotiations get quite detailed, there might be a risk that key employees could be targeted by the other party in the negotiation. For example, as an alternative to purchasing the business or services.
To prevent this, you might seek to include an obligation on the other party not to poach employees. While you might have a restraint of trade agreed with your employee, that will only allow you to take action against the employee, not the other company. Obtaining a contractual commitment from the other company will make it easier for you enforce the obligation against them directly. If a no poaching clause is included, it should specify the length of the obligation, which ought to be appropriate length of time given the nature of the NDA - which is protecting initial conversations only, not yet a substantive deal between the parties.