First, for CIP.... I believe you should cover your bases and go ahead and put the notice on your website. Even though the customer cannot actually open the account online, they are obtaining the application there, and might fax it in without ever stepping foot in your branch to see a posted paper notice.
31 CFR 103.121 (the CIP rule for banks) says "Adequate notice. Notice is adequate if the bank generally describes the identification requirements of this section and provides the notice in a manner reasonably designed to ensure that a customer is able to view the notice, or is otherwise given notice, before opening an account. For example, depending upon the manner in which the account is opened, a bank may post a notice in the lobby or on its website, include the notice on its account applications, or use any other form of written or oral notice."
By posting the CIP notice electronically, it is one less piece of paper you'd have to send out later. I don't know about you, but we don't have separate CIP disclosures printed up to distribute to customers -- we just have the posted notices. Will your lending staff remember to send out that piece of paper to faxed loan applicants, when the same step does not have to be taken with anyone else? I doubt it. The headache of trying to get everyone to remember this step is way worse than just linking to the notice on your website.
As for the HELOC/CHARM booklet, I still think you should link to it, expecially if you will accept faxed apps. A footnote in the Reg only allows for the mailing of the disclosure and booklet in certain circumstances. "The disclosures and the brochure may be delivered or placed in the mail not later than three business days following receipt of a consumer's application in the case of applications contained in magazines or other publications, or when the application is received by telephone or through an intermediary agent or broker." The spirit of the regulation is clearly to allow exceptions are for instances when, due to space or bulk limitations, providing the booklet is not possible. However, given the space and resources available on one's website, I don't think the same argument can be made for applications available online.
That's just my $.02!